122557646 has 8 divisors (see below), whose sum is σ = 184552560. Its totient is φ = 61040128.

The previous prime is 122557637. The next prime is 122557649. The reversal of 122557646 is 646755221.

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

It is a super-2 number, since 2×122557646² = 30040753186122632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122557649) 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, 118706 + ... + 119733.

It is an arithmetic number, because the mean of its divisors is an integer number (23069070).

Almost surely, 2^122557646 is an apocalyptic number.

122557646 is a deficient number, since it is larger than the sum of its proper divisors (61994914).

122557646 is a wasteful number, since it uses less digits than its factorization.

122557646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238698.

The product of its digits is 100800, while the sum is 38.

The square root of 122557646 is about 11070.5756851213. The cubic root of 122557646 is about 496.7220855136.

The spelling of 122557646 in words is "one hundred twenty-two million, five hundred fifty-seven thousand, six hundred forty-six".