121533994 has 16 divisors (see below), whose sum is σ = 192127680. Its totient is φ = 57499200.

The previous prime is 121533989. The next prime is 121534031. The reversal of 121533994 is 499335121.

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, 44307 + ... + 46969.

It is an arithmetic number, because the mean of its divisors is an integer number (12007980).

Almost surely, 2^121533994 is an apocalyptic number.

121533994 is a deficient number, since it is larger than the sum of its proper divisors (70593686).

121533994 is a wasteful number, since it uses less digits than its factorization.

121533994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3885.

The product of its digits is 29160, while the sum is 37.

The square root of 121533994 is about 11024.2457338359. The cubic root of 121533994 is about 495.3352746792.

The spelling of 121533994 in words is "one hundred twenty-one million, five hundred thirty-three thousand, nine hundred ninety-four".