122138495 has 8 divisors (see below), whose sum is σ = 146637216. Its totient is φ = 97663456.

The previous prime is 122138491. The next prime is 122138501. The reversal of 122138495 is 594831221.

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 122138495 - 2² = 122138491 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 (122138491) 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, 8729 + ... + 17901.

It is an arithmetic number, because the mean of its divisors is an integer number (18329652).

Almost surely, 2^122138495 is an apocalyptic number.

122138495 is a deficient number, since it is larger than the sum of its proper divisors (24498721).

122138495 is an equidigital number, since it uses as much as digits as its factorization.

122138495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11841.

The product of its digits is 17280, while the sum is 35.

The square root of 122138495 is about 11051.6286130145. The cubic root of 122138495 is about 496.1551703527.

The spelling of 122138495 in words is "one hundred twenty-two million, one hundred thirty-eight thousand, four hundred ninety-five".