122530251 has 4 divisors (see below), whose sum is σ = 163373672. Its totient is φ = 81686832.

The previous prime is 122530241. The next prime is 122530253. The reversal of 122530251 is 152035221.

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

It is not a de Polignac number, because 122530251 - 2⁹ = 122529739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122530253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20421706 + ... + 20421711.

It is an arithmetic number, because the mean of its divisors is an integer number (40843418).

Almost surely, 2^122530251 is an apocalyptic number.

122530251 is a deficient number, since it is larger than the sum of its proper divisors (40843421).

122530251 is an equidigital number, since it uses as much as digits as its factorization.

122530251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40843420.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 122530251 is about 11069.3383271088. The cubic root of 122530251 is about 496.6850724127.

Adding to 122530251 its reverse (152035221), we get a palindrome (274565472).

The spelling of 122530251 in words is "one hundred twenty-two million, five hundred thirty thousand, two hundred fifty-one".