9161592490 has 16 divisors (see below), whose sum is σ = 16495495848. Its totient is φ = 3663608256.

The previous prime is 9161592487. The next prime is 9161592493. The reversal of 9161592490 is 942951619.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (9161592487) and next prime (9161592493).

It can be written as a sum of positive squares in 4 ways, for example, as 3936182121 + 5225410369 = 62739^2 + 72287^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9161592490.

It is not an unprimeable number, because it can be changed into a prime (9161592493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90657 + ... + 162916.

Almost surely, 2^9161592490 is an apocalyptic number.

9161592490 is a deficient number, since it is larger than the sum of its proper divisors (7333903358).

9161592490 is a wasteful number, since it uses less digits than its factorization.

9161592490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257193.

The product of its (nonzero) digits is 174960, while the sum is 46.

The square root of 9161592490 is about 95716.2080841066. The cubic root of 9161592490 is about 2092.4591590192.

The spelling of 9161592490 in words is "nine billion, one hundred sixty-one million, five hundred ninety-two thousand, four hundred ninety".