1340613 has 6 divisors (see below), whose sum is σ = 1936454. Its totient is φ = 893736.

The previous prime is 1340587. The next prime is 1340617. The reversal of 1340613 is 3160431.

1340613 is a `hidden beast` number, since 13 + 40 + 613 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1077444 + 263169 = 1038^2 + 513^2 .

It is not a de Polignac number, because 1340613 - 2⁸ = 1340357 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340617) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74470 + ... + 74487.

2^1340613 is an apocalyptic number.

It is an amenable number.

1340613 is a deficient number, since it is larger than the sum of its proper divisors (595841).

1340613 is a wasteful number, since it uses less digits than its factorization.

1340613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148963 (or 148960 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1340613 is about 1157.8484356771. The cubic root of 1340613 is about 110.2641859359.

It can be divided in two parts, 1340 and 613, that added together give a triangular number (1953 = T₆₂).

The spelling of 1340613 in words is "one million, three hundred forty thousand, six hundred thirteen".