122879381 has 8 divisors (see below), whose sum is σ = 126979584. Its totient is φ = 118787760.

The previous prime is 122879377. The next prime is 122879399. The reversal of 122879381 is 183978221.

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 122879381 - 2² = 122879377 is a prime.

It is a super-2 number, since 2×122879381² = 30198684549886322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122879311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41120 + ... + 44006.

It is an arithmetic number, because the mean of its divisors is an integer number (15872448).

Almost surely, 2^122879381 is an apocalyptic number.

It is an amenable number.

122879381 is a deficient number, since it is larger than the sum of its proper divisors (4100203).

122879381 is a wasteful number, since it uses less digits than its factorization.

122879381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4291.

The product of its digits is 48384, while the sum is 41.

The square root of 122879381 is about 11085.0972481075. The cubic root of 122879381 is about 497.1563661522.

The spelling of 122879381 in words is "one hundred twenty-two million, eight hundred seventy-nine thousand, three hundred eighty-one".