4531513 has 4 divisors (see below), whose sum is σ = 5178880. Its totient is φ = 3884148.

The previous prime is 4531463. The next prime is 4531517. The reversal of 4531513 is 3151354.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3151354 = 2 ⋅1575677.

It is a cyclic number.

It is not a de Polignac number, because 4531513 - 2²¹ = 2434361 is a prime.

It is a super-2 number, since 2×4531513² = 41069220138338, which contains 22 as substring.

4531513 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4531517) 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, 323673 + ... + 323686.

It is an arithmetic number, because the mean of its divisors is an integer number (1294720).

Almost surely, 2^4531513 is an apocalyptic number.

It is an amenable number.

4531513 is a deficient number, since it is larger than the sum of its proper divisors (647367).

4531513 is an equidigital number, since it uses as much as digits as its factorization.

4531513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647366.

The product of its digits is 900, while the sum is 22.

The square root of 4531513 is about 2128.7350704115. The cubic root of 4531513 is about 165.4808501557.

Adding to 4531513 its reverse (3151354), we get a palindrome (7682867).

The spelling of 4531513 in words is "four million, five hundred thirty-one thousand, five hundred thirteen".