158649896 has 8 divisors (see below), whose sum is σ = 297468570. Its totient is φ = 79324944.

The previous prime is 158649893. The next prime is 158649937. The reversal of 158649896 is 698946851.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 86229796 + 72420100 = 9286^2 + 8510^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (158649893) 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 as a sum of consecutive naturals, namely, 9915611 + ... + 9915626.

Almost surely, 2^158649896 is an apocalyptic number.

It is an amenable number.

158649896 is a deficient number, since it is larger than the sum of its proper divisors (138818674).

158649896 is a wasteful number, since it uses less digits than its factorization.

158649896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19831243 (or 19831239 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 56.

The square root of 158649896 is about 12595.6300358497. The cubic root of 158649896 is about 541.3522305816.

The spelling of 158649896 in words is "one hundred fifty-eight million, six hundred forty-nine thousand, eight hundred ninety-six".