158191072 has 24 divisors (see below), whose sum is σ = 335396376. Its totient is φ = 73011072.

The previous prime is 158191067. The next prime is 158191091. The reversal of 158191072 is 270191851.

It is a happy number.

158191072 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189718 + ... + 190549.

It is an arithmetic number, because the mean of its divisors is an integer number (13974849).

Almost surely, 2^158191072 is an apocalyptic number.

It is an amenable number.

158191072 is an abundant number, since it is smaller than the sum of its proper divisors (177205304).

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

158191072 is a wasteful number, since it uses less digits than its factorization.

158191072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380290 (or 380282 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 34.

The square root of 158191072 is about 12577.4032296019. The cubic root of 158191072 is about 540.8298534574.

The spelling of 158191072 in words is "one hundred fifty-eight million, one hundred ninety-one thousand, seventy-two".