99156537 has 24 divisors (see below), whose sum is σ = 146998280. Its totient is φ = 64385280.

The previous prime is 99156527. The next prime is 99156553. The reversal of 99156537 is 73565199.

It can be written as a sum of positive squares in 4 ways, for example, as 968256 + 98188281 = 984^2 + 9909^2 .

It is not a de Polignac number, because 99156537 - 2¹² = 99152441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99156492 and 99156501.

It is not an unprimeable number, because it can be changed into a prime (99156517) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59013 + ... + 60669.

Almost surely, 2^99156537 is an apocalyptic number.

It is an amenable number.

99156537 is a deficient number, since it is larger than the sum of its proper divisors (47841743).

99156537 is a wasteful number, since it uses less digits than its factorization.

99156537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833 (or 1830 counting only the distinct ones).

The product of its digits is 255150, while the sum is 45.

The square root of 99156537 is about 9957.7375442417. The cubic root of 99156537 is about 462.8501941850.

The spelling of 99156537 in words is "ninety-nine million, one hundred fifty-six thousand, five hundred thirty-seven".