123535057 has 2 divisors, whose sum is σ = 123535058. Its totient is φ = 123535056.

The previous prime is 123535051. The next prime is 123535133. The reversal of 123535057 is 750535321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122788561 + 746496 = 11081^2 + 864^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123535057 is a prime.

It is not a weakly prime, because it can be changed into another prime (123535051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61767528 + 61767529.

It is an arithmetic number, because the mean of its divisors is an integer number (61767529).

Almost surely, 2^123535057 is an apocalyptic number.

It is an amenable number.

123535057 is a deficient number, since it is larger than the sum of its proper divisors (1).

123535057 is an equidigital number, since it uses as much as digits as its factorization.

123535057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15750, while the sum is 31.

The square root of 123535057 is about 11114.6325625277. The cubic root of 123535057 is about 498.0390621661.

The spelling of 123535057 in words is "one hundred twenty-three million, five hundred thirty-five thousand, fifty-seven".