121269253 has 4 divisors (see below), whose sum is σ = 138593440. Its totient is φ = 103945068.

The previous prime is 121269251. The next prime is 121269257. The reversal of 121269253 is 352962121.

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, and also an emirpimes, since its reverse is a distinct semiprime: 352962121 = 199 ⋅1773679.

It is a cyclic number.

It is not a de Polignac number, because 121269253 - 2¹ = 121269251 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 (121269251) 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 3 ways as a sum of consecutive naturals, for example, 8662083 + ... + 8662096.

It is an arithmetic number, because the mean of its divisors is an integer number (34648360).

Almost surely, 2^121269253 is an apocalyptic number.

It is an amenable number.

121269253 is a deficient number, since it is larger than the sum of its proper divisors (17324187).

121269253 is an equidigital number, since it uses as much as digits as its factorization.

121269253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17324186.

The product of its digits is 6480, while the sum is 31.

The square root of 121269253 is about 11012.2319717667. The cubic root of 121269253 is about 494.9753455054.

The spelling of 121269253 in words is "one hundred twenty-one million, two hundred sixty-nine thousand, two hundred fifty-three".