331072253 has 4 divisors (see below), whose sum is σ = 339147228. Its totient is φ = 322997280.

The previous prime is 331072241. The next prime is 331072319. The reversal of 331072253 is 352270133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 352270133 = 8647 ⋅40739.

It can be written as a sum of positive squares in 2 ways, for example, as 146845924 + 184226329 = 12118^2 + 13573^2 .

It is a cyclic number.

It is not a de Polignac number, because 331072253 - 2⁸ = 331071997 is a prime.

It is a super-3 number, since 3×331072253³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331072213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4037426 + ... + 4037507.

It is an arithmetic number, because the mean of its divisors is an integer number (84786807).

Almost surely, 2^331072253 is an apocalyptic number.

It is an amenable number.

331072253 is a deficient number, since it is larger than the sum of its proper divisors (8074975).

331072253 is an equidigital number, since it uses as much as digits as its factorization.

331072253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8074974.

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 331072253 is about 18195.3909823340. The cubic root of 331072253 is about 691.7899705915.

The spelling of 331072253 in words is "three hundred thirty-one million, seventy-two thousand, two hundred fifty-three".