157889107 has 8 divisors (see below), whose sum is σ = 171560960. Its totient is φ = 144753480.

The previous prime is 157889099. The next prime is 157889113. The reversal of 157889107 is 701988751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157889107 - 2³ = 157889099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157889117) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 133443 + ... + 134620.

It is an arithmetic number, because the mean of its divisors is an integer number (21445120).

Almost surely, 2^157889107 is an apocalyptic number.

157889107 is a deficient number, since it is larger than the sum of its proper divisors (13671853).

157889107 is a wasteful number, since it uses less digits than its factorization.

157889107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268113.

The product of its (nonzero) digits is 141120, while the sum is 46.

The square root of 157889107 is about 12565.3932290239. The cubic root of 157889107 is about 540.4855109941.

The spelling of 157889107 in words is "one hundred fifty-seven million, eight hundred eighty-nine thousand, one hundred seven".