158161022 has 16 divisors (see below), whose sum is σ = 240235632. Its totient is φ = 78086400.

The previous prime is 158161007. The next prime is 158161027. The reversal of 158161022 is 220161851.

It is a junction number, because it is equal to n+sod(n) for n = 158160982 and 158161000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158161027) 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, 135413 + ... + 136575.

It is an arithmetic number, because the mean of its divisors is an integer number (15014727).

Almost surely, 2^158161022 is an apocalyptic number.

158161022 is a deficient number, since it is larger than the sum of its proper divisors (82074610).

158161022 is a wasteful number, since it uses less digits than its factorization.

158161022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 158161022 is about 12576.2085701534. The cubic root of 158161022 is about 540.7956059152.

The spelling of 158161022 in words is "one hundred fifty-eight million, one hundred sixty-one thousand, twenty-two".