123577157 has 8 divisors (see below), whose sum is σ = 138100032. Its totient is φ = 109602400.

The previous prime is 123577109. The next prime is 123577169. The reversal of 123577157 is 751775321.

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 123577157 - 2¹⁶ = 123511621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123577157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123577057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136553 + ... + 137454.

It is an arithmetic number, because the mean of its divisors is an integer number (17262504).

Almost surely, 2^123577157 is an apocalyptic number.

It is an amenable number.

123577157 is a deficient number, since it is larger than the sum of its proper divisors (14522875).

123577157 is a wasteful number, since it uses less digits than its factorization.

123577157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274059.

The product of its digits is 51450, while the sum is 38.

The square root of 123577157 is about 11116.5263009629. The cubic root of 123577157 is about 498.0956319734.

The spelling of 123577157 in words is "one hundred twenty-three million, five hundred seventy-seven thousand, one hundred fifty-seven".