158161372 has 6 divisors (see below), whose sum is σ = 276782408. Its totient is φ = 79080684.

The previous prime is 158161343. The next prime is 158161373. The reversal of 158161372 is 273161851.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158161373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19770168 + ... + 19770175.

Almost surely, 2^158161372 is an apocalyptic number.

It is an amenable number.

158161372 is a deficient number, since it is larger than the sum of its proper divisors (118621036).

158161372 is a wasteful number, since it uses less digits than its factorization.

158161372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39540347 (or 39540345 counting only the distinct ones).

The product of its digits is 10080, while the sum is 34.

The square root of 158161372 is about 12576.2224853093. Note that the first 3 decimals coincide. The cubic root of 158161372 is about 540.7960048300.

The spelling of 158161372 in words is "one hundred fifty-eight million, one hundred sixty-one thousand, three hundred seventy-two".