121164253 has 16 divisors (see below), whose sum is σ = 152997120. Its totient is φ = 93494016.

The previous prime is 121164247. The next prime is 121164271. The reversal of 121164253 is 352461121.

It is a happy number.

It is not a de Polignac number, because 121164253 - 2¹⁷ = 121033181 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 (121164203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19398 + ... + 24871.

It is an arithmetic number, because the mean of its divisors is an integer number (9562320).

Almost surely, 2^121164253 is an apocalyptic number.

It is an amenable number.

121164253 is a deficient number, since it is larger than the sum of its proper divisors (31832867).

121164253 is a wasteful number, since it uses less digits than its factorization.

121164253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44316.

The product of its digits is 1440, while the sum is 25.

The square root of 121164253 is about 11007.4635134530. The cubic root of 121164253 is about 494.8324474578.

The spelling of 121164253 in words is "one hundred twenty-one million, one hundred sixty-four thousand, two hundred fifty-three".