1120657657 has 24 divisors (see below), whose sum is σ = 1345586496. Its totient is φ = 914004000.

The previous prime is 1120657627. The next prime is 1120657661. The reversal of 1120657657 is 7567560211.

It is a happy number.

It is not a de Polignac number, because 1120657657 - 2¹¹ = 1120655609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1120657607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 408982 + ... + 411712.

It is an arithmetic number, because the mean of its divisors is an integer number (56066104).

Almost surely, 2^1120657657 is an apocalyptic number.

It is an amenable number.

1120657657 is a deficient number, since it is larger than the sum of its proper divisors (224928839).

1120657657 is an equidigital number, since it uses as much as digits as its factorization.

1120657657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861 (or 2830 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 40.

The square root of 1120657657 is about 33476.2252501682. The cubic root of 1120657657 is about 1038.7020472698.

The spelling of 1120657657 in words is "one billion, one hundred twenty million, six hundred fifty-seven thousand, six hundred fifty-seven".