158371863 has 16 divisors (see below), whose sum is σ = 229073376. Its totient is φ = 96744960.

The previous prime is 158371849. The next prime is 158371879. The reversal of 158371863 is 368173851.

It is not a de Polignac number, because 158371863 - 2⁸ = 158371607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158371823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9478 + ... + 20163.

It is an arithmetic number, because the mean of its divisors is an integer number (14317086).

Almost surely, 2^158371863 is an apocalyptic number.

158371863 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

158371863 is a deficient number, since it is larger than the sum of its proper divisors (70701513).

158371863 is a wasteful number, since it uses less digits than its factorization.

158371863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29794.

The product of its digits is 120960, while the sum is 42.

The square root of 158371863 is about 12584.5883126942. The cubic root of 158371863 is about 541.0358068102.

The spelling of 158371863 in words is "one hundred fifty-eight million, three hundred seventy-one thousand, eight hundred sixty-three".