120857567 has 2 divisors, whose sum is σ = 120857568. Its totient is φ = 120857566.

The previous prime is 120857557. The next prime is 120857579. The reversal of 120857567 is 765758021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120857567 - 2²² = 116663263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120857557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60428783 + 60428784.

It is an arithmetic number, because the mean of its divisors is an integer number (60428784).

Almost surely, 2^120857567 is an apocalyptic number.

120857567 is a deficient number, since it is larger than the sum of its proper divisors (1).

120857567 is an equidigital number, since it uses as much as digits as its factorization.

120857567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 117600, while the sum is 41.

The square root of 120857567 is about 10993.5238663497. The cubic root of 120857567 is about 494.4145948268.

The spelling of 120857567 in words is "one hundred twenty million, eight hundred fifty-seven thousand, five hundred sixty-seven".