121744253 has 4 divisors (see below), whose sum is σ = 121773408. Its totient is φ = 121715100.

The previous prime is 121744247. The next prime is 121744261. The reversal of 121744253 is 352447121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121744253 - 2⁸ = 121743997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121744213) 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, 7001 + ... + 17102.

It is an arithmetic number, because the mean of its divisors is an integer number (30443352).

Almost surely, 2^121744253 is an apocalyptic number.

It is an amenable number.

121744253 is a deficient number, since it is larger than the sum of its proper divisors (29155).

121744253 is an equidigital number, since it uses as much as digits as its factorization.

121744253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29154.

The product of its digits is 6720, while the sum is 29.

The square root of 121744253 is about 11033.7778208554. Note that the first 3 decimals coincide. The cubic root of 121744253 is about 495.6207605014.

The spelling of 121744253 in words is "one hundred twenty-one million, seven hundred forty-four thousand, two hundred fifty-three".