122572764257 has 8 divisors (see below), whose sum is σ = 124028954280. Its totient is φ = 121122604800.

The previous prime is 122572764253. The next prime is 122572764277. The reversal of 122572764257 is 752467275221.

It can be written as a sum of positive squares in 4 ways, for example, as 4092928576 + 118479835681 = 63976^2 + 344209^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 122572764257 - 2² = 122572764253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122572764253) 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, 1466744 + ... + 1548057.

It is an arithmetic number, because the mean of its divisors is an integer number (15503619285).

Almost surely, 2^122572764257 is an apocalyptic number.

It is an amenable number.

122572764257 is a deficient number, since it is larger than the sum of its proper divisors (1456190023).

122572764257 is a wasteful number, since it uses less digits than its factorization.

122572764257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3015283.

The product of its digits is 3292800, while the sum is 50.

The spelling of 122572764257 in words is "one hundred twenty-two billion, five hundred seventy-two million, seven hundred sixty-four thousand, two hundred fifty-seven".