121925151 has 12 divisors (see below), whose sum is σ = 176753512. Its totient is φ = 80988336.

The previous prime is 121925149. The next prime is 121925171. The reversal of 121925151 is 151529121.

It is not a de Polignac number, because 121925151 - 2¹ = 121925149 is a prime.

It is a super-3 number, since 3×121925151³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121925131) 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, 21961 + ... + 26946.

Almost surely, 2^121925151 is an apocalyptic number.

121925151 is a deficient number, since it is larger than the sum of its proper divisors (54828361).

121925151 is a wasteful number, since it uses less digits than its factorization.

121925151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49190 (or 49187 counting only the distinct ones).

The product of its digits is 900, while the sum is 27.

The square root of 121925151 is about 11041.9722423125. The cubic root of 121925151 is about 495.8661175570.

The spelling of 121925151 in words is "one hundred twenty-one million, nine hundred twenty-five thousand, one hundred fifty-one".