158708649 has 16 divisors (see below), whose sum is σ = 231850944. Its totient is φ = 95769600.

The previous prime is 158708647. The next prime is 158708681. The reversal of 158708649 is 946807851.

It is not a de Polignac number, because 158708649 - 2¹ = 158708647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 158708598 and 158708607.

It is not an unprimeable number, because it can be changed into a prime (158708647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2632 + ... + 18009.

It is an arithmetic number, because the mean of its divisors is an integer number (14490684).

Almost surely, 2^158708649 is an apocalyptic number.

It is an amenable number.

158708649 is a deficient number, since it is larger than the sum of its proper divisors (73142295).

158708649 is a wasteful number, since it uses less digits than its factorization.

158708649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20888.

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 158708649 is about 12597.9620971013. The cubic root of 158708649 is about 541.4190488671.

It can be divided in two parts, 158 and 708649, that added together give a palindrome (708807).

The spelling of 158708649 in words is "one hundred fifty-eight million, seven hundred eight thousand, six hundred forty-nine".