158357538 has 16 divisors (see below), whose sum is σ = 351905760. Its totient is φ = 52785828.

The previous prime is 158357531. The next prime is 158357543. The reversal of 158357538 is 835753851.

It is a junction number, because it is equal to n+sod(n) for n = 158357493 and 158357502.

It is not an unprimeable number, because it can be changed into a prime (158357531) 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, 1466220 + ... + 1466327.

It is an arithmetic number, because the mean of its divisors is an integer number (21994110).

Almost surely, 2^158357538 is an apocalyptic number.

158357538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

158357538 is an abundant number, since it is smaller than the sum of its proper divisors (193548222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

158357538 is a wasteful number, since it uses less digits than its factorization.

158357538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2932558 (or 2932552 counting only the distinct ones).

The product of its digits is 504000, while the sum is 45.

The square root of 158357538 is about 12584.0191512887. The cubic root of 158357538 is about 541.0194937870.

The spelling of 158357538 in words is "one hundred fifty-eight million, three hundred fifty-seven thousand, five hundred thirty-eight".