9007158561 has 4 divisors (see below), whose sum is σ = 12009544752. Its totient is φ = 6004772372.

The previous prime is 9007158553. The next prime is 9007158577. The reversal of 9007158561 is 1658517009.

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.

It is a cyclic number.

It is not a de Polignac number, because 9007158561 - 2³ = 9007158553 is a prime.

It is a super-2 number, since 2×9007158561² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9007158521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1501193091 + ... + 1501193096.

It is an arithmetic number, because the mean of its divisors is an integer number (3002386188).

Almost surely, 2^9007158561 is an apocalyptic number.

It is an amenable number.

9007158561 is a deficient number, since it is larger than the sum of its proper divisors (3002386191).

9007158561 is a wasteful number, since it uses less digits than its factorization.

9007158561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3002386190.

The product of its (nonzero) digits is 75600, while the sum is 42.

The square root of 9007158561 is about 94906.0512348923. The cubic root of 9007158561 is about 2080.6351734502.

The spelling of 9007158561 in words is "nine billion, seven million, one hundred fifty-eight thousand, five hundred sixty-one".