121837492 has 12 divisors (see below), whose sum is σ = 243675040. Its totient is φ = 52216056.

The previous prime is 121837451. The next prime is 121837493. The reversal of 121837492 is 294738121.

121837492 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121837493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2175642 + ... + 2175697.

Almost surely, 2^121837492 is an apocalyptic number.

It is an amenable number.

121837492 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121837492 is a wasteful number, since it uses less digits than its factorization.

121837492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4351350 (or 4351348 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 121837492 is about 11038.0021743067. The cubic root of 121837492 is about 495.7472535140.

The spelling of 121837492 in words is "one hundred twenty-one million, eight hundred thirty-seven thousand, four hundred ninety-two".