122379489 has 6 divisors (see below), whose sum is σ = 176770386. Its totient is φ = 81586320.

The previous prime is 122379457. The next prime is 122379503. The reversal of 122379489 is 984973221.

It can be written as a sum of positive squares in only one way, i.e., 122213025 + 166464 = 11055^2 + 408^2 .

It is not a de Polignac number, because 122379489 - 2⁵ = 122379457 is a prime.

It is a super-2 number, since 2×122379489² = 29953478655802242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122379409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6798852 + ... + 6798869.

It is an arithmetic number, because the mean of its divisors is an integer number (29461731).

Almost surely, 2^122379489 is an apocalyptic number.

It is an amenable number.

122379489 is a deficient number, since it is larger than the sum of its proper divisors (54390897).

122379489 is a wasteful number, since it uses less digits than its factorization.

122379489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13597727 (or 13597724 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 122379489 is about 11062.5263389517. The cubic root of 122379489 is about 496.4812806504.

The spelling of 122379489 in words is "one hundred twenty-two million, three hundred seventy-nine thousand, four hundred eighty-nine".