158576397 has 48 divisors (see below), whose sum is σ = 255794112. Its totient is φ = 87064320.

The previous prime is 158576381. The next prime is 158576399. The reversal of 158576397 is 793675851.

It is not a de Polignac number, because 158576397 - 2⁴ = 158576381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158576399) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 500083 + ... + 500399.

It is an arithmetic number, because the mean of its divisors is an integer number (5329044).

Almost surely, 2^158576397 is an apocalyptic number.

It is an amenable number.

158576397 is a deficient number, since it is larger than the sum of its proper divisors (97217715).

158576397 is a wasteful number, since it uses less digits than its factorization.

158576397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 451 counting only the distinct ones).

The product of its digits is 1587600, while the sum is 51.

The square root of 158576397 is about 12592.7120589649. The cubic root of 158576397 is about 541.2686188163.

The spelling of 158576397 in words is "one hundred fifty-eight million, five hundred seventy-six thousand, three hundred ninety-seven".