1372749 has 16 divisors (see below), whose sum is σ = 2112000. Its totient is φ = 776880.

The previous prime is 1372747. The next prime is 1372757. The reversal of 1372749 is 9472731.

It is not a de Polignac number, because 1372749 - 2¹ = 1372747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2502 + ... + 3000.

It is an arithmetic number, because the mean of its divisors is an integer number (132000).

2^1372749 is an apocalyptic number.

It is an amenable number.

1372749 is a deficient number, since it is larger than the sum of its proper divisors (739251).

1372749 is a wasteful number, since it uses less digits than its factorization.

1372749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640.

The product of its digits is 10584, while the sum is 33.

The square root of 1372749 is about 1171.6437171769. The cubic root of 1372749 is about 111.1382904251.

The spelling of 1372749 in words is "one million, three hundred seventy-two thousand, seven hundred forty-nine".