158814138 has 32 divisors (see below), whose sum is σ = 372818304. Its totient is φ = 44148672.

The previous prime is 158814137. The next prime is 158814143. The reversal of 158814138 is 831418851.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 158814096 and 158814105.

It is not an unprimeable number, because it can be changed into a prime (158814137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49545 + ... + 52652.

It is an arithmetic number, because the mean of its divisors is an integer number (11650572).

Almost surely, 2^158814138 is an apocalyptic number.

158814138 is an abundant number, since it is smaller than the sum of its proper divisors (214004166).

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

158814138 is a wasteful number, since it uses less digits than its factorization.

158814138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102246.

The product of its digits is 30720, while the sum is 39.

The square root of 158814138 is about 12602.1481502163. The cubic root of 158814138 is about 541.5389774388.

The spelling of 158814138 in words is "one hundred fifty-eight million, eight hundred fourteen thousand, one hundred thirty-eight".