120751636 has 12 divisors (see below), whose sum is σ = 214210612. Its totient is φ = 59548608.

The previous prime is 120751627. The next prime is 120751639. The reversal of 120751636 is 636157021.

It can be written as a sum of positive squares in 2 ways, for example, as 101002500 + 19749136 = 10050^2 + 4444^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 120751598 and 120751607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120751639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206475 + ... + 207058.

Almost surely, 2^120751636 is an apocalyptic number.

It is an amenable number.

120751636 is a deficient number, since it is larger than the sum of its proper divisors (93458976).

120751636 is a wasteful number, since it uses less digits than its factorization.

120751636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413610 (or 413608 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 120751636 is about 10988.7049282434. The cubic root of 120751636 is about 494.2701020352.

The spelling of 120751636 in words is "one hundred twenty million, seven hundred fifty-one thousand, six hundred thirty-six".