120772631 has 4 divisors (see below), whose sum is σ = 138025872. Its totient is φ = 103519392.

The previous prime is 120772627. The next prime is 120772643. The reversal of 120772631 is 136277021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120772631 - 2² = 120772627 is a prime.

It is a super-2 number, since 2×120772631² = 29172056797324322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120772594 and 120772603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120772651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8626610 + ... + 8626623.

It is an arithmetic number, because the mean of its divisors is an integer number (34506468).

Almost surely, 2^120772631 is an apocalyptic number.

120772631 is a deficient number, since it is larger than the sum of its proper divisors (17253241).

120772631 is an equidigital number, since it uses as much as digits as its factorization.

120772631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17253240.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 120772631 is about 10989.6601858292. The cubic root of 120772631 is about 494.2987465041.

The spelling of 120772631 in words is "one hundred twenty million, seven hundred seventy-two thousand, six hundred thirty-one".