122736247 has 4 divisors (see below), whose sum is σ = 125729856. Its totient is φ = 119742640.

The previous prime is 122736221. The next prime is 122736253. The reversal of 122736247 is 742637221.

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

It is a cyclic number.

It is not a de Polignac number, because 122736247 - 2¹⁹ = 122211959 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 (122736847) 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, 1496743 + ... + 1496824.

It is an arithmetic number, because the mean of its divisors is an integer number (31432464).

Almost surely, 2^122736247 is an apocalyptic number.

122736247 is a deficient number, since it is larger than the sum of its proper divisors (2993609).

122736247 is an equidigital number, since it uses as much as digits as its factorization.

122736247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2993608.

The product of its digits is 28224, while the sum is 34.

The square root of 122736247 is about 11078.6392214929. The cubic root of 122736247 is about 496.9632563821.

The spelling of 122736247 in words is "one hundred twenty-two million, seven hundred thirty-six thousand, two hundred forty-seven".