120669557 has 2 divisors, whose sum is σ = 120669558. Its totient is φ = 120669556.

The previous prime is 120669533. The next prime is 120669599. The reversal of 120669557 is 755966021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62315236 + 58354321 = 7894^2 + 7639^2 .

It is a cyclic number.

It is not a de Polignac number, because 120669557 - 2²⁰ = 119620981 is a prime.

It is a super-2 number, since 2×120669557² = 29122283973152498, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120669457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60334778 + 60334779.

It is an arithmetic number, because the mean of its divisors is an integer number (60334779).

Almost surely, 2^120669557 is an apocalyptic number.

It is an amenable number.

120669557 is a deficient number, since it is larger than the sum of its proper divisors (1).

120669557 is an equidigital number, since it uses as much as digits as its factorization.

120669557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 120669557 is about 10984.9695948601. The cubic root of 120669557 is about 494.1580859097.

The spelling of 120669557 in words is "one hundred twenty million, six hundred sixty-nine thousand, five hundred fifty-seven".