122331457 has 4 divisors (see below), whose sum is σ = 127650240. Its totient is φ = 117012676.

The previous prime is 122331449. The next prime is 122331467. The reversal of 122331457 is 754133221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 754133221 = 59 ⋅12781919.

It is a cyclic number.

It is not a de Polignac number, because 122331457 - 2³ = 122331449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122331437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2659357 + ... + 2659402.

It is an arithmetic number, because the mean of its divisors is an integer number (31912560).

Almost surely, 2^122331457 is an apocalyptic number.

It is an amenable number.

122331457 is a deficient number, since it is larger than the sum of its proper divisors (5318783).

122331457 is an equidigital number, since it uses as much as digits as its factorization.

122331457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5318782.

The product of its digits is 5040, while the sum is 28.

The square root of 122331457 is about 11060.3551932115. The cubic root of 122331457 is about 496.4163184862.

Adding to 122331457 its reverse (754133221), we get a palindrome (876464678).

The spelling of 122331457 in words is "one hundred twenty-two million, three hundred thirty-one thousand, four hundred fifty-seven".