1372815 has 16 divisors (see below), whose sum is σ = 2440800. Its totient is φ = 732096.

The previous prime is 1372799. The next prime is 1372829. The reversal of 1372815 is 5182731.

It is not a de Polignac number, because 1372815 - 2⁴ = 1372799 is a prime.

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

1372815 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4950 + ... + 5219.

It is an arithmetic number, because the mean of its divisors is an integer number (152550).

2^1372815 is an apocalyptic number.

1372815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1372815 is a deficient number, since it is larger than the sum of its proper divisors (1067985).

1372815 is a wasteful number, since it uses less digits than its factorization.

1372815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10183 (or 10177 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 1372815 is about 1171.6718823971. The cubic root of 1372815 is about 111.1400715251.

It can be divided in two parts, 1372 and 815, that added together give a 7-th power (2187 = 3⁷).

The spelling of 1372815 in words is "one million, three hundred seventy-two thousand, eight hundred fifteen".