1374813 has 20 divisors (see below), whose sum is σ = 2241888. Its totient is φ = 832680.

The previous prime is 1374787. The next prime is 1374827. The reversal of 1374813 is 3184731.

It is not a de Polignac number, because 1374813 - 2⁶ = 1374749 is a prime.

It is a super-2 number, since 2×1374813² = 3780221569938, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1374833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 120 + ... + 1662.

2^1374813 is an apocalyptic number.

It is an amenable number.

1374813 is a deficient number, since it is larger than the sum of its proper divisors (867075).

1374813 is a wasteful number, since it uses less digits than its factorization.

1374813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566 (or 1557 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 1374813 is about 1172.5242001767. The cubic root of 1374813 is about 111.1939632784.

It can be divided in two parts, 1374 and 813, that added together give a 7-th power (2187 = 3⁷).

The spelling of 1374813 in words is "one million, three hundred seventy-four thousand, eight hundred thirteen".