972122405 has 8 divisors (see below), whose sum is σ = 1166728992. Its totient is φ = 777576528.

The previous prime is 972122381. The next prime is 972122443. The reversal of 972122405 is 504221279.

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-972122405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35354 + ... + 56516.

It is an arithmetic number, because the mean of its divisors is an integer number (145841124).

Almost surely, 2^972122405 is an apocalyptic number.

It is an amenable number.

972122405 is a deficient number, since it is larger than the sum of its proper divisors (194606587).

972122405 is a wasteful number, since it uses less digits than its factorization.

972122405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30355.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 972122405 is about 31178.8775455436. The cubic root of 972122405 is about 990.6197544462.

The spelling of 972122405 in words is "nine hundred seventy-two million, one hundred twenty-two thousand, four hundred five".