1512313 has 4 divisors (see below), whose sum is σ = 1649808. Its totient is φ = 1374820.

The previous prime is 1512311. The next prime is 1512323. The reversal of 1512313 is 3132151.

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: 3132151 = 11 ⋅284741.

It is a cyclic number.

It is not a de Polignac number, because 1512313 - 2¹ = 1512311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1512311) 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, 68731 + ... + 68752.

It is an arithmetic number, because the mean of its divisors is an integer number (412452).

2^1512313 is an apocalyptic number.

It is an amenable number.

1512313 is a deficient number, since it is larger than the sum of its proper divisors (137495).

1512313 is a wasteful number, since it uses less digits than its factorization.

1512313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137494.

The product of its digits is 90, while the sum is 16.

The square root of 1512313 is about 1229.7613589636. The cubic root of 1512313 is about 114.7837903599.

Adding to 1512313 its reverse (3132151), we get a palindrome (4644464).

The spelling of 1512313 in words is "one million, five hundred twelve thousand, three hundred thirteen".