1372845 has 16 divisors (see below), whose sum is σ = 2312640. Its totient is φ = 693504.

The previous prime is 1372843. The next prime is 1372849. The reversal of 1372845 is 5482731.

It is not a de Polignac number, because 1372845 - 2¹ = 1372843 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2124 + ... + 2693.

It is an arithmetic number, because the mean of its divisors is an integer number (144540).

2^1372845 is an apocalyptic number.

1372845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1372845 is a deficient number, since it is larger than the sum of its proper divisors (939795).

1372845 is a wasteful number, since it uses less digits than its factorization.

1372845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4844.

The product of its digits is 6720, while the sum is 30.

The square root of 1372845 is about 1171.6846845461. The cubic root of 1372845 is about 111.1408810971.

The spelling of 1372845 in words is "one million, three hundred seventy-two thousand, eight hundred forty-five".