1370273513 has 4 divisors (see below), whose sum is σ = 1566026880. Its totient is φ = 1174520148.

The previous prime is 1370273497. The next prime is 1370273533. The reversal of 1370273513 is 3153720731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3153720731 = 7 ⋅450531533.

It is a cyclic number.

It is not a de Polignac number, because 1370273513 - 2⁴ = 1370273497 is a prime.

It is a super-2 number, since 2×1370273513² = 3755299000858722338, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1370273513.

It is not an unprimeable number, because it can be changed into a prime (1370273533) by changing a digit.

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, 97876673 + ... + 97876686.

It is an arithmetic number, because the mean of its divisors is an integer number (391506720).

Almost surely, 2^1370273513 is an apocalyptic number.

It is an amenable number.

1370273513 is a deficient number, since it is larger than the sum of its proper divisors (195753367).

1370273513 is an equidigital number, since it uses as much as digits as its factorization.

1370273513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195753366.

The product of its (nonzero) digits is 13230, while the sum is 32.

The square root of 1370273513 is about 37017.2056346775. The cubic root of 1370273513 is about 1110.7144476599.

The spelling of 1370273513 in words is "one billion, three hundred seventy million, two hundred seventy-three thousand, five hundred thirteen".