5145404531 has 4 divisors (see below), whose sum is σ = 5145984432. Its totient is φ = 5144824632.

The previous prime is 5145404443. The next prime is 5145404533. The reversal of 5145404531 is 1354045415.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5145404531 is a prime.

It is a super-2 number, since 2×5145404531² = 52950375575270659922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5145404533) 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, 276431 + ... + 294456.

It is an arithmetic number, because the mean of its divisors is an integer number (1286496108).

Almost surely, 2^5145404531 is an apocalyptic number.

5145404531 is a deficient number, since it is larger than the sum of its proper divisors (579901).

5145404531 is an equidigital number, since it uses as much as digits as its factorization.

5145404531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579900.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 5145404531 is about 71731.4751765221. The cubic root of 5145404531 is about 1726.3936961624.

Adding to 5145404531 its reverse (1354045415), we get a palindrome (6499449946).

It can be divided in two parts, 514 and 5404531, that added together give a palindrome (5405045).

The spelling of 5145404531 in words is "five billion, one hundred forty-five million, four hundred four thousand, five hundred thirty-one".