121490252 has 24 divisors (see below), whose sum is σ = 229656336. Its totient is φ = 55902528.

The previous prime is 121490227. The next prime is 121490273. The reversal of 121490252 is 252094121.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14678 + ... + 21410.

It is an arithmetic number, because the mean of its divisors is an integer number (9569014).

Almost surely, 2^121490252 is an apocalyptic number.

It is an amenable number.

121490252 is a deficient number, since it is larger than the sum of its proper divisors (108166084).

121490252 is a wasteful number, since it uses less digits than its factorization.

121490252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7097 (or 7095 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 121490252 is about 11022.2616553954. The cubic root of 121490252 is about 495.2758412240.

The spelling of 121490252 in words is "one hundred twenty-one million, four hundred ninety thousand, two hundred fifty-two".