4520431 has 2 divisors, whose sum is σ = 4520432. Its totient is φ = 4520430.

The previous prime is 4520407. The next prime is 4520449. The reversal of 4520431 is 1340254.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4520431 - 2⁷ = 4520303 is a prime.

It is a super-2 number, since 2×4520431² = 40868592851522, which contains 22 as substring.

4520431 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4520399 and 4520408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4520531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2260215 + 2260216.

It is an arithmetic number, because the mean of its divisors is an integer number (2260216).

Almost surely, 2^4520431 is an apocalyptic number.

4520431 is a deficient number, since it is larger than the sum of its proper divisors (1).

4520431 is an equidigital number, since it uses as much as digits as its factorization.

4520431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 4520431 is about 2126.1305228043. The cubic root of 4520431 is about 165.3458433165.

Adding to 4520431 its reverse (1340254), we get a palindrome (5860685).

The spelling of 4520431 in words is "four million, five hundred twenty thousand, four hundred thirty-one".