122572831 has 2 divisors, whose sum is σ = 122572832. Its totient is φ = 122572830.

The previous prime is 122572811. The next prime is 122572861. The reversal of 122572831 is 138275221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122572831 - 2⁹ = 122572319 is a prime.

It is a super-2 number, since 2×122572831² = 30048197798709122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122572793 and 122572802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122572811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61286415 + 61286416.

It is an arithmetic number, because the mean of its divisors is an integer number (61286416).

Almost surely, 2^122572831 is an apocalyptic number.

122572831 is a deficient number, since it is larger than the sum of its proper divisors (1).

122572831 is an equidigital number, since it uses as much as digits as its factorization.

122572831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 31.

The square root of 122572831 is about 11071.2614909052. The cubic root of 122572831 is about 496.7425994340.

The spelling of 122572831 in words is "one hundred twenty-two million, five hundred seventy-two thousand, eight hundred thirty-one".