158890497 has 8 divisors (see below), whose sum is σ = 211918656. Its totient is φ = 105894672.

The previous prime is 158890493. The next prime is 158890549. The reversal of 158890497 is 794098851.

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

It is not a de Polignac number, because 158890497 - 2² = 158890493 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158890493) 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, 7903 + ... + 19499.

It is an arithmetic number, because the mean of its divisors is an integer number (26489832).

Almost surely, 2^158890497 is an apocalyptic number.

It is an amenable number.

158890497 is a deficient number, since it is larger than the sum of its proper divisors (53028159).

158890497 is a wasteful number, since it uses less digits than its factorization.

158890497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16167.

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 158890497 is about 12605.1773886764. The cubic root of 158890497 is about 541.6257555005.

The spelling of 158890497 in words is "one hundred fifty-eight million, eight hundred ninety thousand, four hundred ninety-seven".