158659897 has 8 divisors (see below), whose sum is σ = 173238912. Its totient is φ = 144106800.

The previous prime is 158659883. The next prime is 158659901. The reversal of 158659897 is 798956851.

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 158659897 - 2¹⁹ = 158135609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158659807) 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, 7683 + ... + 19399.

It is an arithmetic number, because the mean of its divisors is an integer number (21654864).

Almost surely, 2^158659897 is an apocalyptic number.

It is an amenable number.

158659897 is a deficient number, since it is larger than the sum of its proper divisors (14579015).

158659897 is a wasteful number, since it uses less digits than its factorization.

158659897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12959.

The product of its digits is 5443200, while the sum is 58.

The square root of 158659897 is about 12596.0270323622. The cubic root of 158659897 is about 541.3636056282.

The spelling of 158659897 in words is "one hundred fifty-eight million, six hundred fifty-nine thousand, eight hundred ninety-seven".