158000397 has 48 divisors (see below), whose sum is σ = 239887872. Its totient is φ = 92067840.

The previous prime is 158000393. The next prime is 158000413. The reversal of 158000397 is 793000851.

158000397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 158000397 - 2² = 158000393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158000393) 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, 2164353 + ... + 2164425.

It is an arithmetic number, because the mean of its divisors is an integer number (4997664).

Almost surely, 2^158000397 is an apocalyptic number.

158000397 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

158000397 is a deficient number, since it is larger than the sum of its proper divisors (81887475).

158000397 is a wasteful number, since it uses less digits than its factorization.

158000397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 158000397 is about 12569.8208817787. The cubic root of 158000397 is about 540.6124703657.

The spelling of 158000397 in words is "one hundred fifty-eight million, three hundred ninety-seven", and thus it is an aban number.