36312013 has 4 divisors (see below), whose sum is σ = 36440608. Its totient is φ = 36183420.

The previous prime is 36312007. The next prime is 36312043. The reversal of 36312013 is 31021363.

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: 31021363 = 47 ⋅660029.

It is a cyclic number.

It is not a de Polignac number, because 36312013 - 2⁵ = 36311981 is a prime.

It is a super-2 number, since 2×36312013² = 2637124576224338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36312043) 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, 63873 + ... + 64438.

It is an arithmetic number, because the mean of its divisors is an integer number (9110152).

Almost surely, 2^36312013 is an apocalyptic number.

It is an amenable number.

36312013 is a deficient number, since it is larger than the sum of its proper divisors (128595).

36312013 is a wasteful number, since it uses less digits than its factorization.

36312013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128594.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 36312013 is about 6025.9449881326. The cubic root of 36312013 is about 331.1439120104.

Adding to 36312013 its reverse (31021363), we get a palindrome (67333376).

The spelling of 36312013 in words is "thirty-six million, three hundred twelve thousand, thirteen".