122581983 has 16 divisors (see below), whose sum is σ = 166322016. Its totient is φ = 80294400.

The previous prime is 122581937. The next prime is 122582011. The reversal of 122581983 is 389185221.

It is a de Polignac number, because none of the positive numbers 2^k-122581983 is a prime.

It is a super-3 number, since 3×122581983³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122581913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40035 + ... + 42987.

It is an arithmetic number, because the mean of its divisors is an integer number (10395126).

Almost surely, 2^122581983 is an apocalyptic number.

122581983 is a deficient number, since it is larger than the sum of its proper divisors (43740033).

122581983 is a wasteful number, since it uses less digits than its factorization.

122581983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3194.

The product of its digits is 34560, while the sum is 39.

The square root of 122581983 is about 11071.6748055567. The cubic root of 122581983 is about 496.7549623562.

It can be divided in two parts, 12258 and 1983, that added together give a palindrome (14241).

The spelling of 122581983 in words is "one hundred twenty-two million, five hundred eighty-one thousand, nine hundred eighty-three".