122316257 has 8 divisors (see below), whose sum is σ = 140020800. Its totient is φ = 104669424.

The previous prime is 122316251. The next prime is 122316269. The reversal of 122316257 is 752613221.

It is a happy number.

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 122316257 - 2⁶ = 122316193 is a prime.

It is a super-2 number, since 2×122316257² = 29922533452980098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122316251) 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, 9782 + ... + 18447.

It is an arithmetic number, because the mean of its divisors is an integer number (17502600).

Almost surely, 2^122316257 is an apocalyptic number.

It is an amenable number.

122316257 is a deficient number, since it is larger than the sum of its proper divisors (17704543).

122316257 is an equidigital number, since it uses as much as digits as its factorization.

122316257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28855.

The product of its digits is 5040, while the sum is 29.

The square root of 122316257 is about 11059.6680329927. The cubic root of 122316257 is about 496.3957572973.

Adding to 122316257 its reverse (752613221), we get a palindrome (874929478).

The spelling of 122316257 in words is "one hundred twenty-two million, three hundred sixteen thousand, two hundred fifty-seven".