120521151 has 12 divisors (see below), whose sum is σ = 176538960. Its totient is φ = 79215360.

The previous prime is 120521111. The next prime is 120521153. The reversal of 120521151 is 151125021.

It is not a de Polignac number, because 120521151 - 2¹⁵ = 120488383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120521153) 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, 93666 + ... + 94943.

It is an arithmetic number, because the mean of its divisors is an integer number (14711580).

Almost surely, 2^120521151 is an apocalyptic number.

120521151 is a deficient number, since it is larger than the sum of its proper divisors (56017809).

120521151 is a wasteful number, since it uses less digits than its factorization.

120521151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188686 (or 188683 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 120521151 is about 10978.2125594288. The cubic root of 120521151 is about 493.9554219528.

Adding to 120521151 its reverse (151125021), we get a palindrome (271646172).

It can be divided in two parts, 12052 and 1151, that added together give a triangular number (13203 = T₁₆₂).

The spelling of 120521151 in words is "one hundred twenty million, five hundred twenty-one thousand, one hundred fifty-one".