122620285 has 4 divisors (see below), whose sum is σ = 147144348. Its totient is φ = 98096224.

The previous prime is 122620279. The next prime is 122620301. The reversal of 122620285 is 582026221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81108036 + 41512249 = 9006^2 + 6443^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122620285 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12262024 + ... + 12262033.

It is an arithmetic number, because the mean of its divisors is an integer number (36786087).

Almost surely, 2^122620285 is an apocalyptic number.

It is an amenable number.

122620285 is a deficient number, since it is larger than the sum of its proper divisors (24524063).

122620285 is an equidigital number, since it uses as much as digits as its factorization.

122620285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24524062.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 122620285 is about 11073.4043997318. The cubic root of 122620285 is about 496.8066956989.

The spelling of 122620285 in words is "one hundred twenty-two million, six hundred twenty thousand, two hundred eighty-five".