1374764645 has 8 divisors (see below), whose sum is σ = 1689954840. Its totient is φ = 1072986880.

The previous prime is 1374764621. The next prime is 1374764663. The reversal of 1374764645 is 5464674731.

It can be written as a sum of positive squares in 4 ways, for example, as 5098564 + 1369666081 = 2258^2 + 37009^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1374764645 - 2¹² = 1374760549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1374764645.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3352880 + ... + 3353289.

It is an arithmetic number, because the mean of its divisors is an integer number (211244355).

Almost surely, 2^1374764645 is an apocalyptic number.

It is an amenable number.

1374764645 is a deficient number, since it is larger than the sum of its proper divisors (315190195).

1374764645 is an equidigital number, since it uses as much as digits as its factorization.

1374764645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6706215.

The product of its digits is 1693440, while the sum is 47.

The square root of 1374764645 is about 37077.8187734931. The cubic root of 1374764645 is about 1111.9265962299.

The spelling of 1374764645 in words is "one billion, three hundred seventy-four million, seven hundred sixty-four thousand, six hundred forty-five".