122801779 has 8 divisors (see below), whose sum is σ = 126685008. Its totient is φ = 118948320.

The previous prime is 122801773. The next prime is 122801797. The reversal of 122801779 is 977108221.

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 122801779 - 2²³ = 114413171 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122801773) 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, 1089 + ... + 15709.

It is an arithmetic number, because the mean of its divisors is an integer number (15835626).

Almost surely, 2^122801779 is an apocalyptic number.

122801779 is a deficient number, since it is larger than the sum of its proper divisors (3883229).

122801779 is a wasteful number, since it uses less digits than its factorization.

122801779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14885.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 122801779 is about 11081.5964102651. The cubic root of 122801779 is about 497.0516877475.

The spelling of 122801779 in words is "one hundred twenty-two million, eight hundred one thousand, seven hundred seventy-nine".