120644357 has 4 divisors (see below), whose sum is σ = 126994080. Its totient is φ = 114294636.

The previous prime is 120644351. The next prime is 120644411. The reversal of 120644357 is 753446021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120644357 - 2⁴ = 120644341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120644351) 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, 3174833 + ... + 3174870.

It is an arithmetic number, because the mean of its divisors is an integer number (31748520).

Almost surely, 2^120644357 is an apocalyptic number.

It is an amenable number.

120644357 is a deficient number, since it is larger than the sum of its proper divisors (6349723).

120644357 is an equidigital number, since it uses as much as digits as its factorization.

120644357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6349722.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 120644357 is about 10983.8225131327. The cubic root of 120644357 is about 494.1236843836.

The spelling of 120644357 in words is "one hundred twenty million, six hundred forty-four thousand, three hundred fifty-seven".