122798749 has 8 divisors (see below), whose sum is σ = 124498080. Its totient is φ = 121104816.

The previous prime is 122798747. The next prime is 122798761. The reversal of 122798749 is 947897221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122798749 - 2¹ = 122798747 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 (122798747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67747 + ... + 69535.

It is an arithmetic number, because the mean of its divisors is an integer number (15562260).

Almost surely, 2^122798749 is an apocalyptic number.

It is an amenable number.

122798749 is a deficient number, since it is larger than the sum of its proper divisors (1699331).

122798749 is an equidigital number, since it uses as much as digits as its factorization.

122798749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2699.

The product of its digits is 508032, while the sum is 49.

The square root of 122798749 is about 11081.4596962675. The cubic root of 122798749 is about 497.0475996444.

The spelling of 122798749 in words is "one hundred twenty-two million, seven hundred ninety-eight thousand, seven hundred forty-nine".