122090491 has 8 divisors (see below), whose sum is σ = 125634384. Its totient is φ = 118559520.

The previous prime is 122090489. The next prime is 122090513. The reversal of 122090491 is 194090221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 122090491 - 2¹ = 122090489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122090461) 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 7 ways as a sum of consecutive naturals, for example, 17901 + ... + 23761.

It is an arithmetic number, because the mean of its divisors is an integer number (15704298).

Almost surely, 2^122090491 is an apocalyptic number.

122090491 is a deficient number, since it is larger than the sum of its proper divisors (3543893).

122090491 is an equidigital number, since it uses as much as digits as its factorization.

122090491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6461.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 122090491 is about 11049.4565929732. The cubic root of 122090491 is about 496.0901606717.

The spelling of 122090491 in words is "one hundred twenty-two million, ninety thousand, four hundred ninety-one".