122451431 has 2 divisors, whose sum is σ = 122451432. Its totient is φ = 122451430.

The previous prime is 122451383. The next prime is 122451449. The reversal of 122451431 is 134154221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122451431 - 2⁶ = 122451367 is a prime.

It is a super-2 number, since 2×122451431² = 29988705907895522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122451397 and 122451406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122451481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61225715 + 61225716.

It is an arithmetic number, because the mean of its divisors is an integer number (61225716).

Almost surely, 2^122451431 is an apocalyptic number.

122451431 is a deficient number, since it is larger than the sum of its proper divisors (1).

122451431 is an equidigital number, since it uses as much as digits as its factorization.

122451431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 23.

The square root of 122451431 is about 11065.7774692969. Note that the first 3 decimals coincide. The cubic root of 122451431 is about 496.5785487461.

The spelling of 122451431 in words is "one hundred twenty-two million, four hundred fifty-one thousand, four hundred thirty-one".