1513246243 has 2 divisors, whose sum is σ = 1513246244. Its totient is φ = 1513246242.

The previous prime is 1513246223. The next prime is 1513246247. The reversal of 1513246243 is 3426423151.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1513246243 - 2¹⁷ = 1513115171 is a prime.

It is not a weakly prime, because it can be changed into another prime (1513246247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 756623121 + 756623122.

It is an arithmetic number, because the mean of its divisors is an integer number (756623122).

Almost surely, 2^1513246243 is an apocalyptic number.

1513246243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1513246243 is an equidigital number, since it uses as much as digits as its factorization.

1513246243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 31.

The square root of 1513246243 is about 38900.4658455397. The cubic root of 1513246243 is about 1148.0739639505.

Adding to 1513246243 its reverse (3426423151), we get a palindrome (4939669394).

The spelling of 1513246243 in words is "one billion, five hundred thirteen million, two hundred forty-six thousand, two hundred forty-three".