4313531 has 2 divisors, whose sum is σ = 4313532. Its totient is φ = 4313530.

The previous prime is 4313509. The next prime is 4313539. The reversal of 4313531 is 1353134.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4313531 - 2⁶ = 4313467 is a prime.

It is a super-2 number, since 2×4313531² = 37213099375922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4313539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2156765 + 2156766.

It is an arithmetic number, because the mean of its divisors is an integer number (2156766).

Almost surely, 2^4313531 is an apocalyptic number.

4313531 is a deficient number, since it is larger than the sum of its proper divisors (1).

4313531 is an equidigital number, since it uses as much as digits as its factorization.

4313531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540, while the sum is 20.

The square root of 4313531 is about 2076.9041865238. The cubic root of 4313531 is about 162.7837220895.

Adding to 4313531 its reverse (1353134), we get a palindrome (5666665).

The spelling of 4313531 in words is "four million, three hundred thirteen thousand, five hundred thirty-one".