121129974 has 48 divisors (see below), whose sum is σ = 301260960. Its totient is φ = 34456320.

The previous prime is 121129919. The next prime is 121130003. The reversal of 121129974 is 479921121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28372 + ... + 32360.

It is an arithmetic number, because the mean of its divisors is an integer number (6276270).

Almost surely, 2^121129974 is an apocalyptic number.

121129974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121129974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150630480).

121129974 is an abundant number, since it is smaller than the sum of its proper divisors (180130986).

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

121129974 is a wasteful number, since it uses less digits than its factorization.

121129974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4245 (or 4242 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 121129974 is about 11005.9063234247. The cubic root of 121129974 is about 494.7857781338.

The spelling of 121129974 in words is "one hundred twenty-one million, one hundred twenty-nine thousand, nine hundred seventy-four".