1145430617 has 4 divisors (see below), whose sum is σ = 1145936820. Its totient is φ = 1144924416.

The previous prime is 1145430569. The next prime is 1145430619. The reversal of 1145430617 is 7160345411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 430189081 + 715241536 = 20741^2 + 26744^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145430617 - 2⁸ = 1145430361 is a prime.

It is a super-2 number, since 2×1145430617² = 2624022596722001378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145430619) 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, 249692 + ... + 254237.

It is an arithmetic number, because the mean of its divisors is an integer number (286484205).

Almost surely, 2^1145430617 is an apocalyptic number.

It is an amenable number.

1145430617 is a deficient number, since it is larger than the sum of its proper divisors (506203).

1145430617 is an equidigital number, since it uses as much as digits as its factorization.

1145430617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506202.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 1145430617 is about 33844.2109820867. The cubic root of 1145430617 is about 1046.3000895652.

The spelling of 1145430617 in words is "one billion, one hundred forty-five million, four hundred thirty thousand, six hundred seventeen".