122870647 has 2 divisors, whose sum is σ = 122870648. Its totient is φ = 122870646.

The previous prime is 122870621. The next prime is 122870677. The reversal of 122870647 is 746078221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122870647 - 2⁷ = 122870519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122870677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61435323 + 61435324.

It is an arithmetic number, because the mean of its divisors is an integer number (61435324).

Almost surely, 2^122870647 is an apocalyptic number.

122870647 is a deficient number, since it is larger than the sum of its proper divisors (1).

122870647 is an equidigital number, since it uses as much as digits as its factorization.

122870647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 122870647 is about 11084.7032887669. The cubic root of 122870647 is about 497.1445869409.

The spelling of 122870647 in words is "one hundred twenty-two million, eight hundred seventy thousand, six hundred forty-seven".