120650551 has 16 divisors (see below), whose sum is σ = 148239360. Its totient is φ = 95882400.

The previous prime is 120650539. The next prime is 120650567. The reversal of 120650551 is 155056021.

It is a cyclic number.

It is not a de Polignac number, because 120650551 - 2⁷ = 120650423 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 (120650051) 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 in 15 ways as a sum of consecutive naturals, for example, 3400 + ... + 15901.

It is an arithmetic number, because the mean of its divisors is an integer number (9264960).

Almost surely, 2^120650551 is an apocalyptic number.

120650551 is a deficient number, since it is larger than the sum of its proper divisors (27588809).

120650551 is a wasteful number, since it uses less digits than its factorization.

120650551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19374.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 120650551 is about 10984.1044696416. The cubic root of 120650551 is about 494.1321405043.

The spelling of 120650551 in words is "one hundred twenty million, six hundred fifty thousand, five hundred fifty-one".