121737973 has 8 divisors (see below), whose sum is σ = 140890880. Its totient is φ = 103025520.

The previous prime is 121737953. The next prime is 121737983. The reversal of 121737973 is 379737121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121737973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121737953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109518 + ... + 110623.

It is an arithmetic number, because the mean of its divisors is an integer number (17611360).

Almost surely, 2^121737973 is an apocalyptic number.

It is an amenable number.

121737973 is a deficient number, since it is larger than the sum of its proper divisors (19152907).

121737973 is an equidigital number, since it uses as much as digits as its factorization.

121737973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220227.

The product of its digits is 55566, while the sum is 40.

The square root of 121737973 is about 11033.4932365049. The cubic root of 121737973 is about 495.6122383964.

The spelling of 121737973 in words is "one hundred twenty-one million, seven hundred thirty-seven thousand, nine hundred seventy-three".