5145531 has 4 divisors (see below), whose sum is σ = 6860712. Its totient is φ = 3430352.

The previous prime is 5145529. The next prime is 5145589. The reversal of 5145531 is 1355415.

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

It is a cyclic number.

It is not a de Polignac number, because 5145531 - 2¹ = 5145529 is a prime.

It is a super-2 number, since 2×5145531² = 52952978543922, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (5145521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857586 + ... + 857591.

It is an arithmetic number, because the mean of its divisors is an integer number (1715178).

Almost surely, 2^5145531 is an apocalyptic number.

5145531 is a deficient number, since it is larger than the sum of its proper divisors (1715181).

5145531 is a wasteful number, since it uses less digits than its factorization.

5145531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715180.

The product of its digits is 1500, while the sum is 24.

The square root of 5145531 is about 2268.3762915354. The cubic root of 5145531 is about 172.6407840401.

The spelling of 5145531 in words is "five million, one hundred forty-five thousand, five hundred thirty-one".