1618013 has 4 divisors (see below), whose sum is σ = 1622880. Its totient is φ = 1613148.

The previous prime is 1618007. The next prime is 1618033. The reversal of 1618013 is 3108161.

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.

It is a cyclic number.

It is not a de Polignac number, because 1618013 - 2⁶ = 1617949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1618003) 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, 1895 + ... + 2612.

It is an arithmetic number, because the mean of its divisors is an integer number (405720).

2^1618013 is an apocalyptic number.

It is an amenable number.

1618013 is a deficient number, since it is larger than the sum of its proper divisors (4867).

1618013 is an equidigital number, since it uses as much as digits as its factorization.

1618013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4866.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1618013 is about 1272.0113993200. The cubic root of 1618013 is about 117.3979920466.

The spelling of 1618013 in words is "one million, six hundred eighteen thousand, thirteen".