157123070 has 48 divisors (see below), whose sum is σ = 312621120. Its totient is φ = 56520960.

The previous prime is 157123039. The next prime is 157123079. The reversal of 157123070 is 70321751.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157123079) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 218171 + ... + 218889.

It is an arithmetic number, because the mean of its divisors is an integer number (6512940).

Almost surely, 2^157123070 is an apocalyptic number.

157123070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157123070 is a deficient number, since it is larger than the sum of its proper divisors (155498050).

157123070 is a wasteful number, since it uses less digits than its factorization.

157123070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 157123070 is about 12534.8741517416. The cubic root of 157123070 is about 539.6099950286.

The spelling of 157123070 in words is "one hundred fifty-seven million, one hundred twenty-three thousand, seventy".