122657361 has 4 divisors (see below), whose sum is σ = 163543152. Its totient is φ = 81771572.

The previous prime is 122657351. The next prime is 122657377. The reversal of 122657361 is 163756221.

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: 163756221 = 3 ⋅54585407.

It is a cyclic number.

It is not a de Polignac number, because 122657361 - 2⁷ = 122657233 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122657341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20442891 + ... + 20442896.

It is an arithmetic number, because the mean of its divisors is an integer number (40885788).

Almost surely, 2^122657361 is an apocalyptic number.

It is an amenable number.

122657361 is a deficient number, since it is larger than the sum of its proper divisors (40885791).

122657361 is an equidigital number, since it uses as much as digits as its factorization.

122657361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40885790.

The product of its digits is 15120, while the sum is 33.

The square root of 122657361 is about 11075.0783744405. The cubic root of 122657361 is about 496.8567628606.

The spelling of 122657361 in words is "one hundred twenty-two million, six hundred fifty-seven thousand, three hundred sixty-one".