253121433 has 8 divisors (see below), whose sum is σ = 339192000. Its totient is φ = 167899248.

The previous prime is 253121431. The next prime is 253121437. The reversal of 253121433 is 334121352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 253121433 - 2¹ = 253121431 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253121431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211398 + ... + 212591.

It is an arithmetic number, because the mean of its divisors is an integer number (42399000).

Almost surely, 2^253121433 is an apocalyptic number.

It is an amenable number.

253121433 is a deficient number, since it is larger than the sum of its proper divisors (86070567).

253121433 is a wasteful number, since it uses less digits than its factorization.

253121433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424191.

The product of its digits is 2160, while the sum is 24.

The square root of 253121433 is about 15909.7904763073. The cubic root of 253121433 is about 632.5715275803.

Adding to 253121433 its reverse (334121352), we get a palindrome (587242785).

The spelling of 253121433 in words is "two hundred fifty-three million, one hundred twenty-one thousand, four hundred thirty-three".