122813389 has 8 divisors (see below), whose sum is σ = 131302080. Its totient is φ = 114465216.

The previous prime is 122813377. The next prime is 122813393. The reversal of 122813389 is 983318221.

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

It is not a de Polignac number, because 122813389 - 2¹³ = 122805197 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 (122813329) 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, 33319 + ... + 36820.

It is an arithmetic number, because the mean of its divisors is an integer number (16412760).

Almost surely, 2^122813389 is an apocalyptic number.

It is an amenable number.

122813389 is a deficient number, since it is larger than the sum of its proper divisors (8488691).

122813389 is a wasteful number, since it uses less digits than its factorization.

122813389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70259.

The product of its digits is 20736, while the sum is 37.

The square root of 122813389 is about 11082.1202393766. The cubic root of 122813389 is about 497.0673514409.

The spelling of 122813389 in words is "one hundred twenty-two million, eight hundred thirteen thousand, three hundred eighty-nine".