120253657 has 2 divisors, whose sum is σ = 120253658. Its totient is φ = 120253656.

The previous prime is 120253621. The next prime is 120253667. The reversal of 120253657 is 756352021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109599961 + 10653696 = 10469^2 + 3264^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120253657 is a prime.

It is not a weakly prime, because it can be changed into another prime (120253607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60126828 + 60126829.

It is an arithmetic number, because the mean of its divisors is an integer number (60126829).

Almost surely, 2^120253657 is an apocalyptic number.

It is an amenable number.

120253657 is a deficient number, since it is larger than the sum of its proper divisors (1).

120253657 is an equidigital number, since it uses as much as digits as its factorization.

120253657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 120253657 is about 10966.0228433101. The cubic root of 120253657 is about 493.5897102513.

The spelling of 120253657 in words is "one hundred twenty million, two hundred fifty-three thousand, six hundred fifty-seven".