158241172 has 6 divisors (see below), whose sum is σ = 276922058. Its totient is φ = 79120584.

The previous prime is 158241169. The next prime is 158241211. The reversal of 158241172 is 271142851.

It can be written as a sum of positive squares in only one way, i.e., 157402116 + 839056 = 12546^2 + 916^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19780143 + ... + 19780150.

Almost surely, 2^158241172 is an apocalyptic number.

It is an amenable number.

158241172 is a deficient number, since it is larger than the sum of its proper divisors (118680886).

158241172 is a wasteful number, since it uses less digits than its factorization.

158241172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39560297 (or 39560295 counting only the distinct ones).

The product of its digits is 4480, while the sum is 31.

The square root of 158241172 is about 12579.3947390167. The cubic root of 158241172 is about 540.8869420474.

The spelling of 158241172 in words is "one hundred fifty-eight million, two hundred forty-one thousand, one hundred seventy-two".