313212541 has 4 divisors (see below), whose sum is σ = 313306300. Its totient is φ = 313118784.

The previous prime is 313212479. The next prime is 313212547. The reversal of 313212541 is 145212313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 145212313 = 7253 ⋅20021.

It can be written as a sum of positive squares in 2 ways, for example, as 165225316 + 147987225 = 12854^2 + 12165^2 .

It is a cyclic number.

It is not a de Polignac number, because 313212541 - 2¹¹ = 313210493 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 (313212547) 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, 41676 + ... + 48613.

It is an arithmetic number, because the mean of its divisors is an integer number (78326575).

Almost surely, 2^313212541 is an apocalyptic number.

It is an amenable number.

313212541 is a deficient number, since it is larger than the sum of its proper divisors (93759).

313212541 is an equidigital number, since it uses as much as digits as its factorization.

313212541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93758.

The product of its digits is 720, while the sum is 22.

The square root of 313212541 is about 17697.8117573897. The cubic root of 313212541 is about 679.1197816623.

Adding to 313212541 its reverse (145212313), we get a palindrome (458424854).

The spelling of 313212541 in words is "three hundred thirteen million, two hundred twelve thousand, five hundred forty-one".