122138594 has 8 divisors (see below), whose sum is σ = 183263148. Its totient is φ = 61050880.

The previous prime is 122138561. The next prime is 122138629. The reversal of 122138594 is 495831221.

It can be written as a sum of positive squares in 2 ways, for example, as 119093569 + 3045025 = 10913^2 + 1745^2 .

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

It is a super-2 number, since 2×122138594² = 29835672288593672, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1634 + ... + 15714.

Almost surely, 2^122138594 is an apocalyptic number.

122138594 is a deficient number, since it is larger than the sum of its proper divisors (61124554).

122138594 is a wasteful number, since it uses less digits than its factorization.

122138594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18420.

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

The square root of 122138594 is about 11051.6330919914. The cubic root of 122138594 is about 496.1553044064.

The spelling of 122138594 in words is "one hundred twenty-two million, one hundred thirty-eight thousand, five hundred ninety-four".