158072945 has 16 divisors (see below), whose sum is σ = 194886912. Its totient is φ = 123016320.

The previous prime is 158072923. The next prime is 158072969. The reversal of 158072945 is 549270851.

It is a de Polignac number, because none of the positive numbers 2^k-158072945 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56909 + ... + 59621.

It is an arithmetic number, because the mean of its divisors is an integer number (12180432).

Almost surely, 2^158072945 is an apocalyptic number.

It is an amenable number.

158072945 is a deficient number, since it is larger than the sum of its proper divisors (36813967).

158072945 is a wasteful number, since it uses less digits than its factorization.

158072945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3032.

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 158072945 is about 12572.7063514583. The cubic root of 158072945 is about 540.6952008587.

The spelling of 158072945 in words is "one hundred fifty-eight million, seventy-two thousand, nine hundred forty-five".