122772651 has 4 divisors (see below), whose sum is σ = 163696872. Its totient is φ = 81848432.

The previous prime is 122772649. The next prime is 122772659. The reversal of 122772651 is 156277221.

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 122772651 - 2¹ = 122772649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122772659) 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, 20462106 + ... + 20462111.

It is an arithmetic number, because the mean of its divisors is an integer number (40924218).

Almost surely, 2^122772651 is an apocalyptic number.

122772651 is a deficient number, since it is larger than the sum of its proper divisors (40924221).

122772651 is an equidigital number, since it uses as much as digits as its factorization.

122772651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40924220.

The product of its digits is 11760, while the sum is 33.

The square root of 122772651 is about 11080.2820812468. The cubic root of 122772651 is about 497.0123852050.

The spelling of 122772651 in words is "one hundred twenty-two million, seven hundred seventy-two thousand, six hundred fifty-one".