120645351 has 12 divisors (see below), whose sum is σ = 175539312. Its totient is φ = 79842336.

The previous prime is 120645347. The next prime is 120645377. The reversal of 120645351 is 153546021.

120645351 is a `hidden beast` number, since 1 + 206 + 453 + 5 + 1 = 666.

It is not a de Polignac number, because 120645351 - 2² = 120645347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120645391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47691 + ... + 50156.

It is an arithmetic number, because the mean of its divisors is an integer number (14628276).

Almost surely, 2^120645351 is an apocalyptic number.

120645351 is a deficient number, since it is larger than the sum of its proper divisors (54893961).

120645351 is a wasteful number, since it uses less digits than its factorization.

120645351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97990 (or 97987 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 120645351 is about 10983.8677614035. The cubic root of 120645351 is about 494.1250414235.

The spelling of 120645351 in words is "one hundred twenty million, six hundred forty-five thousand, three hundred fifty-one".