120551157 has 24 divisors (see below), whose sum is σ = 182457600. Its totient is φ = 76602240.

The previous prime is 120551153. The next prime is 120551161. The reversal of 120551157 is 751155021.

It is an interprime number because it is at equal distance from previous prime (120551153) and next prime (120551161).

It is not a de Polignac number, because 120551157 - 2² = 120551153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120551157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120551153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15469 + ... + 21917.

It is an arithmetic number, because the mean of its divisors is an integer number (7602400).

Almost surely, 2^120551157 is an apocalyptic number.

It is an amenable number.

120551157 is a deficient number, since it is larger than the sum of its proper divisors (61906443).

120551157 is a wasteful number, since it uses less digits than its factorization.

120551157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6553 (or 6550 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 27.

The square root of 120551157 is about 10979.5790902930. The cubic root of 120551157 is about 493.9964117055.

The spelling of 120551157 in words is "one hundred twenty million, five hundred fifty-one thousand, one hundred fifty-seven".