122342578 has 8 divisors (see below), whose sum is σ = 183571740. Its totient is φ = 61152000.

The previous prime is 122342573. The next prime is 122342617. The reversal of 122342578 is 875243221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 116057529 + 6285049 = 10773^2 + 2507^2 .

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

It is not an unprimeable number, because it can be changed into a prime (122342573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358 + ... + 15646.

Almost surely, 2^122342578 is an apocalyptic number.

122342578 is a deficient number, since it is larger than the sum of its proper divisors (61229162).

122342578 is a wasteful number, since it uses less digits than its factorization.

122342578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19292.

The product of its digits is 26880, while the sum is 34.

The square root of 122342578 is about 11060.8579233258. The cubic root of 122342578 is about 496.4313608929.

Adding to 122342578 its reverse (875243221), we get a palindrome (997585799).

The spelling of 122342578 in words is "one hundred twenty-two million, three hundred forty-two thousand, five hundred seventy-eight".