120140656 has 10 divisors (see below), whose sum is σ = 232772552. Its totient is φ = 60070320.

The previous prime is 120140653. The next prime is 120140663. The reversal of 120140656 is 656041021.

It is a super-2 number, since 2×120140656² = 28867554448220672, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120140656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120140651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3754380 + ... + 3754411.

Almost surely, 2^120140656 is an apocalyptic number.

120140656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

120140656 is a deficient number, since it is larger than the sum of its proper divisors (112631896).

120140656 is an equidigital number, since it uses as much as digits as its factorization.

120140656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7508799 (or 7508793 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 120140656 is about 10960.8693085904. The cubic root of 120140656 is about 493.4350549110.

Adding to 120140656 its reverse (656041021), we get a palindrome (776181677).

The spelling of 120140656 in words is "one hundred twenty million, one hundred forty thousand, six hundred fifty-six".