120785451 has 16 divisors (see below), whose sum is σ = 169785600. Its totient is φ = 76167648.

The previous prime is 120785447. The next prime is 120785461. The reversal of 120785451 is 154587021.

It is not a de Polignac number, because 120785451 - 2² = 120785447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120785411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49365 + ... + 51753.

It is an arithmetic number, because the mean of its divisors is an integer number (10611600).

Almost surely, 2^120785451 is an apocalyptic number.

120785451 is a deficient number, since it is larger than the sum of its proper divisors (49000149).

120785451 is a wasteful number, since it uses less digits than its factorization.

120785451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3298.

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 120785451 is about 10990.2434458933. The cubic root of 120785451 is about 494.3162358024.

The spelling of 120785451 in words is "one hundred twenty million, seven hundred eighty-five thousand, four hundred fifty-one".