123064157 has 4 divisors (see below), whose sum is σ = 124282716. Its totient is φ = 121845600.

The previous prime is 123064153. The next prime is 123064163. The reversal of 123064157 is 751460321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 751460321 = 73 ⋅10293977.

It can be written as a sum of positive squares in 2 ways, for example, as 99580441 + 23483716 = 9979^2 + 4846^2 .

It is a cyclic number.

It is not a de Polignac number, because 123064157 - 2² = 123064153 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123064153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609128 + ... + 609329.

It is an arithmetic number, because the mean of its divisors is an integer number (31070679).

Almost surely, 2^123064157 is an apocalyptic number.

It is an amenable number.

123064157 is a deficient number, since it is larger than the sum of its proper divisors (1218559).

123064157 is a wasteful number, since it uses less digits than its factorization.

123064157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218558.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 123064157 is about 11093.4285502725. The cubic root of 123064157 is about 497.4054357608.

The spelling of 123064157 in words is "one hundred twenty-three million, sixty-four thousand, one hundred fifty-seven".