1145152441 has 4 divisors (see below), whose sum is σ = 1152736384. Its totient is φ = 1137568500.

The previous prime is 1145152433. The next prime is 1145152457. The reversal of 1145152441 is 1442515411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1442515411 = 37 ⋅38986903.

It is a cyclic number.

It is not a de Polignac number, because 1145152441 - 2³ = 1145152433 is a prime.

It is a super-2 number, since 2×1145152441² = 2622748226256516962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145152471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3791745 + ... + 3792046.

It is an arithmetic number, because the mean of its divisors is an integer number (288184096).

Almost surely, 2^1145152441 is an apocalyptic number.

It is an amenable number.

1145152441 is a deficient number, since it is larger than the sum of its proper divisors (7583943).

1145152441 is an equidigital number, since it uses as much as digits as its factorization.

1145152441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7583942.

The product of its digits is 3200, while the sum is 28.

The square root of 1145152441 is about 33840.1010784542. The cubic root of 1145152441 is about 1046.2153822263.

Adding to 1145152441 its reverse (1442515411), we get a palindrome (2587667852).

The spelling of 1145152441 in words is "one billion, one hundred forty-five million, one hundred fifty-two thousand, four hundred forty-one".