120956649 has 32 divisors (see below), whose sum is σ = 187246080. Its totient is φ = 68640000.

The previous prime is 120956629. The next prime is 120956681. The reversal of 120956649 is 946659021.

It is a happy number.

It is not a de Polignac number, because 120956649 - 2¹¹ = 120954601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120956649.

It is not an unprimeable number, because it can be changed into a prime (120956629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140382 + ... + 141240.

It is an arithmetic number, because the mean of its divisors is an integer number (5851440).

Almost surely, 2^120956649 is an apocalyptic number.

It is an amenable number.

120956649 is a deficient number, since it is larger than the sum of its proper divisors (66289431).

120956649 is a wasteful number, since it uses less digits than its factorization.

120956649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 120956649 is about 10998.0293234743. The cubic root of 120956649 is about 494.5496689947.

The spelling of 120956649 in words is "one hundred twenty million, nine hundred fifty-six thousand, six hundred forty-nine".