122089731 has 12 divisors (see below), whose sum is σ = 165513816. Its totient is φ = 80051520.

The previous prime is 122089679. The next prime is 122089741. The reversal of 122089731 is 137980221.

It is a de Polignac number, because none of the positive numbers 2^k-122089731 is a prime.

It is a super-2 number, since 2×122089731² = 29811804831304722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122089692 and 122089701.

It is not an unprimeable number, because it can be changed into a prime (122089741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5695 + ... + 16631.

It is an arithmetic number, because the mean of its divisors is an integer number (13792818).

Almost surely, 2^122089731 is an apocalyptic number.

122089731 is a deficient number, since it is larger than the sum of its proper divisors (43424085).

122089731 is an equidigital number, since it uses as much as digits as its factorization.

122089731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11062 (or 11001 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 122089731 is about 11049.4222020882. The cubic root of 122089731 is about 496.0891313005.

It can be divided in two parts, 1220 and 89731, that added together give a triangular number (90951 = T₄₂₆).

The spelling of 122089731 in words is "one hundred twenty-two million, eighty-nine thousand, seven hundred thirty-one".