120644351 has 2 divisors, whose sum is σ = 120644352. Its totient is φ = 120644350.

The previous prime is 120644341. The next prime is 120644411. The reversal of 120644351 is 153446021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120644351 - 2²⁶ = 53535487 is a prime.

It is a super-2 number, since 2×120644351² = 29110118856422402, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120644351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120644311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60322175 + 60322176.

It is an arithmetic number, because the mean of its divisors is an integer number (60322176).

Almost surely, 2^120644351 is an apocalyptic number.

120644351 is a deficient number, since it is larger than the sum of its proper divisors (1).

120644351 is an equidigital number, since it uses as much as digits as its factorization.

120644351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 120644351 is about 10983.8222400037. The cubic root of 120644351 is about 494.1236761922.

The spelling of 120644351 in words is "one hundred twenty million, six hundred forty-four thousand, three hundred fifty-one".