9151522161 has 32 divisors (see below), whose sum is σ = 13168222848. Its totient is φ = 5632450560.

The previous prime is 9151522147. The next prime is 9151522189. The reversal of 9151522161 is 1612251519.

It is not a de Polignac number, because 9151522161 - 2⁷ = 9151522033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9151521161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 817941 + ... + 829053.

It is an arithmetic number, because the mean of its divisors is an integer number (411506964).

Almost surely, 2^9151522161 is an apocalyptic number.

It is an amenable number.

9151522161 is a deficient number, since it is larger than the sum of its proper divisors (4016700687).

9151522161 is a wasteful number, since it uses less digits than its factorization.

9151522161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11441.

The product of its digits is 5400, while the sum is 33.

The square root of 9151522161 is about 95663.5884806753. The cubic root of 9151522161 is about 2091.6922080220.

The spelling of 9151522161 in words is "nine billion, one hundred fifty-one million, five hundred twenty-two thousand, one hundred sixty-one".