122813387 has 8 divisors (see below), whose sum is σ = 124073040. Its totient is φ = 121560480.

The previous prime is 122813377. The next prime is 122813393. The reversal of 122813387 is 783318221.

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 122813387 - 2¹⁶ = 122747851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122813377) 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, 39968 + ... + 42930.

It is an arithmetic number, because the mean of its divisors is an integer number (15509130).

Almost surely, 2^122813387 is an apocalyptic number.

122813387 is a deficient number, since it is larger than the sum of its proper divisors (1259653).

122813387 is a wasteful number, since it uses less digits than its factorization.

122813387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3373.

The product of its digits is 16128, while the sum is 35.

The square root of 122813387 is about 11082.1201491411. The cubic root of 122813387 is about 497.0673487427.

The spelling of 122813387 in words is "one hundred twenty-two million, eight hundred thirteen thousand, three hundred eighty-seven".