1513983 has 4 divisors (see below), whose sum is σ = 2018648. Its totient is φ = 1009320.

The previous prime is 1513973. The next prime is 1513991. The reversal of 1513983 is 3893151.

It is a happy number.

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

It is not a de Polignac number, because 1513983 - 2⁸ = 1513727 is a prime.

It is a D-number.

It is a Duffinian number.

1513983 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1513983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1513913) 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, 252328 + ... + 252333.

It is an arithmetic number, because the mean of its divisors is an integer number (504662).

2^1513983 is an apocalyptic number.

1513983 is a deficient number, since it is larger than the sum of its proper divisors (504665).

1513983 is an equidigital number, since it uses as much as digits as its factorization.

1513983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504664.

The product of its digits is 3240, while the sum is 30.

The square root of 1513983 is about 1230.4401651442. The cubic root of 1513983 is about 114.8260255353.

The spelling of 1513983 in words is "one million, five hundred thirteen thousand, nine hundred eighty-three".