121725124 has 12 divisors (see below), whose sum is σ = 213312400. Its totient is φ = 60778728.

The previous prime is 121725101. The next prime is 121725137. The reversal of 121725124 is 421527121.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17634 + ... + 23545.

Almost surely, 2^121725124 is an apocalyptic number.

It is an amenable number.

121725124 is a deficient number, since it is larger than the sum of its proper divisors (91587276).

121725124 is a wasteful number, since it uses less digits than its factorization.

121725124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41922 (or 41920 counting only the distinct ones).

The product of its digits is 1120, while the sum is 25.

The square root of 121725124 is about 11032.9109486119. The cubic root of 121725124 is about 495.5948010936.

The spelling of 121725124 in words is "one hundred twenty-one million, seven hundred twenty-five thousand, one hundred twenty-four".