121953974 has 4 divisors (see below), whose sum is σ = 182930964. Its totient is φ = 60976986.

The previous prime is 121953973. The next prime is 121954043. The reversal of 121953974 is 479359121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121953973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30488492 + ... + 30488495.

It is an arithmetic number, because the mean of its divisors is an integer number (45732741).

Almost surely, 2^121953974 is an apocalyptic number.

121953974 is a deficient number, since it is larger than the sum of its proper divisors (60976990).

121953974 is an equidigital number, since it uses as much as digits as its factorization.

121953974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60976989.

The product of its digits is 68040, while the sum is 41.

The square root of 121953974 is about 11043.2773215201. The cubic root of 121953974 is about 495.9051885852.

The spelling of 121953974 in words is "one hundred twenty-one million, nine hundred fifty-three thousand, nine hundred seventy-four".