1356613 has 4 divisors (see below), whose sum is σ = 1369888. Its totient is φ = 1343340.

The previous prime is 1356611. The next prime is 1356623. The reversal of 1356613 is 3166531.

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 1356613 - 2¹ = 1356611 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 (1356611) 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, 6483 + ... + 6688.

It is an arithmetic number, because the mean of its divisors is an integer number (342472).

2^1356613 is an apocalyptic number.

It is an amenable number.

1356613 is a deficient number, since it is larger than the sum of its proper divisors (13275).

1356613 is a wasteful number, since it uses less digits than its factorization.

1356613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13274.

The product of its digits is 1620, while the sum is 25.

The square root of 1356613 is about 1164.7373094393. The cubic root of 1356613 is about 110.7011140566.

The spelling of 1356613 in words is "one million, three hundred fifty-six thousand, six hundred thirteen".