121309974 has 28 divisors (see below), whose sum is σ = 272825916. Its totient is φ = 40436172.

The previous prime is 121309973. The next prime is 121309997. The reversal of 121309974 is 479903121.

It is a super-2 number, since 2×121309974² = 29432219583761352, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121309973) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 40144 + ... + 43059.

Almost surely, 2^121309974 is an apocalyptic number.

121309974 is an abundant number, since it is smaller than the sum of its proper divisors (151515942).

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

121309974 is an frugal number, since it uses more digits than its factorization.

121309974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83223 (or 83208 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 121309974 is about 11014.0807151573. The cubic root of 121309974 is about 495.0307418924.

The spelling of 121309974 in words is "one hundred twenty-one million, three hundred nine thousand, nine hundred seventy-four".