121273950 has 48 divisors (see below), whose sum is σ = 343728000. Its totient is φ = 27719520.

The previous prime is 121273921. The next prime is 121273967. The reversal of 121273950 is 59372121.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 56700 + ... + 58799.

It is an arithmetic number, because the mean of its divisors is an integer number (7161000).

Almost surely, 2^121273950 is an apocalyptic number.

121273950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121273950 is an abundant number, since it is smaller than the sum of its proper divisors (222454050).

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

121273950 is a wasteful number, since it uses less digits than its factorization.

121273950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115521 (or 115516 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 121273950 is about 11012.4452325539. The cubic root of 121273950 is about 494.9817358836.

The spelling of 121273950 in words is "one hundred twenty-one million, two hundred seventy-three thousand, nine hundred fifty".