122742583 has 2 divisors, whose sum is σ = 122742584. Its totient is φ = 122742582.

The previous prime is 122742577. The next prime is 122742619. The reversal of 122742583 is 385247221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122742583 - 2⁵ = 122742551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122752583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61371291 + 61371292.

It is an arithmetic number, because the mean of its divisors is an integer number (61371292).

Almost surely, 2^122742583 is an apocalyptic number.

122742583 is a deficient number, since it is larger than the sum of its proper divisors (1).

122742583 is an equidigital number, since it uses as much as digits as its factorization.

122742583 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 34.

The square root of 122742583 is about 11078.9251734995. The cubic root of 122742583 is about 496.9718077951.

The spelling of 122742583 in words is "one hundred twenty-two million, seven hundred forty-two thousand, five hundred eighty-three".