121251394 has 32 divisors (see below), whose sum is σ = 203359104. Its totient is φ = 53758080.

The previous prime is 121251359. The next prime is 121251419. The reversal of 121251394 is 493152121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165052 + ... + 165784.

It is an arithmetic number, because the mean of its divisors is an integer number (6354972).

Almost surely, 2^121251394 is an apocalyptic number.

121251394 is a deficient number, since it is larger than the sum of its proper divisors (82107710).

121251394 is a wasteful number, since it uses less digits than its factorization.

121251394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922.

The product of its digits is 2160, while the sum is 28.

The square root of 121251394 is about 11011.4210708700. The cubic root of 121251394 is about 494.9510464121.

The spelling of 121251394 in words is "one hundred twenty-one million, two hundred fifty-one thousand, three hundred ninety-four".