1370816245 has 4 divisors (see below), whose sum is σ = 1644979500. Its totient is φ = 1096652992.

The previous prime is 1370816243. The next prime is 1370816281. The reversal of 1370816245 is 5426180731.

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 571114404 + 799701841 = 23898^2 + 28279^2 .

It is a cyclic number.

It is not a de Polignac number, because 1370816245 - 2¹ = 1370816243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1370816243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137081620 + ... + 137081629.

It is an arithmetic number, because the mean of its divisors is an integer number (411244875).

Almost surely, 2^1370816245 is an apocalyptic number.

It is an amenable number.

1370816245 is a deficient number, since it is larger than the sum of its proper divisors (274163255).

1370816245 is an equidigital number, since it uses as much as digits as its factorization.

1370816245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274163254.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 1370816245 is about 37024.5357161977. The cubic root of 1370816245 is about 1110.8610706267.

Adding to 1370816245 its reverse (5426180731), we get a palindrome (6796996976).

The spelling of 1370816245 in words is "one billion, three hundred seventy million, eight hundred sixteen thousand, two hundred forty-five".