158913005 has 8 divisors (see below), whose sum is σ = 191664792. Its totient is φ = 126484288.

The previous prime is 158912989. The next prime is 158913031. The reversal of 158913005 is 500319851.

It can be written as a sum of positive squares in 4 ways, for example, as 31967716 + 126945289 = 5654^2 + 11267^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 158913005 - 2⁴ = 158912989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79682 + ... + 81651.

It is an arithmetic number, because the mean of its divisors is an integer number (23958099).

Almost surely, 2^158913005 is an apocalyptic number.

It is an amenable number.

158913005 is a deficient number, since it is larger than the sum of its proper divisors (32751787).

158913005 is a wasteful number, since it uses less digits than its factorization.

158913005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161535.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 158913005 is about 12606.0701648055. The cubic root of 158913005 is about 541.6513293751.

The spelling of 158913005 in words is "one hundred fifty-eight million, nine hundred thirteen thousand, five".