122712413 has 4 divisors (see below), whose sum is σ = 122900988. Its totient is φ = 122523840.

The previous prime is 122712379. The next prime is 122712439. The reversal of 122712413 is 314217221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23251684 + 99460729 = 4822^2 + 9973^2 .

It is a cyclic number.

It is not a de Polignac number, because 122712413 - 2⁶ = 122712349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122712493) 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, 93308 + ... + 94613.

It is an arithmetic number, because the mean of its divisors is an integer number (30725247).

Almost surely, 2^122712413 is an apocalyptic number.

It is an amenable number.

122712413 is a deficient number, since it is larger than the sum of its proper divisors (188575).

122712413 is an equidigital number, since it uses as much as digits as its factorization.

122712413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188574.

The product of its digits is 672, while the sum is 23.

The square root of 122712413 is about 11077.5634956429. The cubic root of 122712413 is about 496.9310860729.

Adding to 122712413 its reverse (314217221), we get a palindrome (436929634).

The spelling of 122712413 in words is "one hundred twenty-two million, seven hundred twelve thousand, four hundred thirteen".