1376945 has 4 divisors (see below), whose sum is σ = 1652340. Its totient is φ = 1101552.

The previous prime is 1376939. The next prime is 1376957. The reversal of 1376945 is 5496731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 891136 + 485809 = 944^2 + 697^2 .

It is a cyclic number.

It is not a de Polignac number, because 1376945 - 2⁴ = 1376929 is a prime.

It is a super-3 number, since 3×1376945³ = 7831970352633325875, which contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137690 + ... + 137699.

It is an arithmetic number, because the mean of its divisors is an integer number (413085).

2^1376945 is an apocalyptic number.

It is an amenable number.

1376945 is a deficient number, since it is larger than the sum of its proper divisors (275395).

1376945 is an equidigital number, since it uses as much as digits as its factorization.

1376945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275394.

The product of its digits is 22680, while the sum is 35.

The square root of 1376945 is about 1173.4329976611. The cubic root of 1376945 is about 111.2514118409.

The spelling of 1376945 in words is "one million, three hundred seventy-six thousand, nine hundred forty-five".