158385601 has 4 divisors (see below), whose sum is σ = 172784304. Its totient is φ = 143986900.

The previous prime is 158385587. The next prime is 158385607. The reversal of 158385601 is 106583851.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 158385601 - 2¹⁷ = 158254529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158385607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7199335 + ... + 7199356.

It is an arithmetic number, because the mean of its divisors is an integer number (43196076).

Almost surely, 2^158385601 is an apocalyptic number.

158385601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

158385601 is a deficient number, since it is larger than the sum of its proper divisors (14398703).

158385601 is a wasteful number, since it uses less digits than its factorization.

158385601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14398702.

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 158385601 is about 12585.1341272153. The cubic root of 158385601 is about 541.0514504455.

The spelling of 158385601 in words is "one hundred fifty-eight million, three hundred eighty-five thousand, six hundred one".