331245053 has 4 divisors (see below), whose sum is σ = 340197660. Its totient is φ = 322292448.

The previous prime is 331245041. The next prime is 331245073. The reversal of 331245053 is 350542133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 350542133 = 12889 ⋅27197.

It can be written as a sum of positive squares in 2 ways, for example, as 300086329 + 31158724 = 17323^2 + 5582^2 .

It is a cyclic number.

It is not a de Polignac number, because 331245053 - 2¹⁴ = 331228669 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 (331245073) 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, 4476248 + ... + 4476321.

It is an arithmetic number, because the mean of its divisors is an integer number (85049415).

Almost surely, 2^331245053 is an apocalyptic number.

It is an amenable number.

331245053 is a deficient number, since it is larger than the sum of its proper divisors (8952607).

331245053 is an equidigital number, since it uses as much as digits as its factorization.

331245053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8952606.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 331245053 is about 18200.1388181519. The cubic root of 331245053 is about 691.9103073801.

Adding to 331245053 its reverse (350542133), we get a palindrome (681787186).

The spelling of 331245053 in words is "three hundred thirty-one million, two hundred forty-five thousand, fifty-three".