122273491 has 4 divisors (see below), whose sum is σ = 124580592. Its totient is φ = 119966392.

The previous prime is 122273479. The next prime is 122273513. The reversal of 122273491 is 194372221.

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

It is a cyclic number.

It is not a de Polignac number, because 122273491 - 2²¹ = 120176339 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122273471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1153471 + ... + 1153576.

It is an arithmetic number, because the mean of its divisors is an integer number (31145148).

Almost surely, 2^122273491 is an apocalyptic number.

122273491 is a deficient number, since it is larger than the sum of its proper divisors (2307101).

122273491 is an equidigital number, since it uses as much as digits as its factorization.

122273491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307100.

The product of its digits is 6048, while the sum is 31.

The square root of 122273491 is about 11057.7344424615. The cubic root of 122273491 is about 496.3378981703.

The spelling of 122273491 in words is "one hundred twenty-two million, two hundred seventy-three thousand, four hundred ninety-one".