122656453 has 2 divisors, whose sum is σ = 122656454. Its totient is φ = 122656452.

The previous prime is 122656439. The next prime is 122656459. The reversal of 122656453 is 354656221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97476129 + 25180324 = 9873^2 + 5018^2 .

It is a cyclic number.

It is not a de Polignac number, because 122656453 - 2²¹ = 120559301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122656459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61328226 + 61328227.

It is an arithmetic number, because the mean of its divisors is an integer number (61328227).

Almost surely, 2^122656453 is an apocalyptic number.

It is an amenable number.

122656453 is a deficient number, since it is larger than the sum of its proper divisors (1).

122656453 is an equidigital number, since it uses as much as digits as its factorization.

122656453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 34.

The square root of 122656453 is about 11075.0373814268. The cubic root of 122656453 is about 496.8555368245.

The spelling of 122656453 in words is "one hundred twenty-two million, six hundred fifty-six thousand, four hundred fifty-three".