1370578745 has 4 divisors (see below), whose sum is σ = 1644694500. Its totient is φ = 1096462992.

The previous prime is 1370578711. The next prime is 1370578771. The reversal of 1370578745 is 5478750731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5478750731 = 29 ⋅188922439.

It can be written as a sum of positive squares in 2 ways, for example, as 837292096 + 533286649 = 28936^2 + 23093^2 .

It is a cyclic number.

It is not a de Polignac number, because 1370578745 - 2²⁴ = 1353801529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1370578745.

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 3 ways as a sum of consecutive naturals, for example, 137057870 + ... + 137057879.

It is an arithmetic number, because the mean of its divisors is an integer number (411173625).

Almost surely, 2^1370578745 is an apocalyptic number.

It is an amenable number.

1370578745 is a deficient number, since it is larger than the sum of its proper divisors (274115755).

1370578745 is an equidigital number, since it uses as much as digits as its factorization.

1370578745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274115754.

The product of its (nonzero) digits is 823200, while the sum is 47.

The square root of 1370578745 is about 37021.3282446754. The cubic root of 1370578745 is about 1110.7969130507.

The spelling of 1370578745 in words is "one billion, three hundred seventy million, five hundred seventy-eight thousand, seven hundred forty-five".