1145154433 has 4 divisors (see below), whose sum is σ = 1145544660. Its totient is φ = 1144764208.

The previous prime is 1145154427. The next prime is 1145154449. The reversal of 1145154433 is 3344515411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3344515411 = 9209 ⋅363179.

It can be written as a sum of positive squares in 2 ways, for example, as 382124304 + 763030129 = 19548^2 + 27623^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145154433 - 2²¹ = 1143057281 is a prime.

It is a super-2 number, since 2×1145154433² = 2622757350839102978, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1145154395 and 1145154404.

It is not an unprimeable number, because it can be changed into a prime (1145154473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190678 + ... + 196591.

It is an arithmetic number, because the mean of its divisors is an integer number (286386165).

Almost surely, 2^1145154433 is an apocalyptic number.

It is an amenable number.

1145154433 is a deficient number, since it is larger than the sum of its proper divisors (390227).

1145154433 is an equidigital number, since it uses as much as digits as its factorization.

1145154433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390226.

The product of its digits is 14400, while the sum is 31.

The square root of 1145154433 is about 33840.1305109776. The cubic root of 1145154433 is about 1046.2159888587.

Adding to 1145154433 its reverse (3344515411), we get a palindrome (4489669844).

The spelling of 1145154433 in words is "one billion, one hundred forty-five million, one hundred fifty-four thousand, four hundred thirty-three".