1513356989 has 2 divisors, whose sum is σ = 1513356990. Its totient is φ = 1513356988.

The previous prime is 1513356959. The next prime is 1513357009. The reversal of 1513356989 is 9896533151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1065696025 + 447660964 = 32645^2 + 21158^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1513356989 is a prime.

It is a super-2 number, since 2×1513356989² = 4580498752310292242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1513356919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 756678494 + 756678495.

It is an arithmetic number, because the mean of its divisors is an integer number (756678495).

Almost surely, 2^1513356989 is an apocalyptic number.

It is an amenable number.

1513356989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1513356989 is an equidigital number, since it uses as much as digits as its factorization.

1513356989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 874800, while the sum is 50.

The square root of 1513356989 is about 38901.8892728875. The cubic root of 1513356989 is about 1148.1019702974.

The spelling of 1513356989 in words is "one billion, five hundred thirteen million, three hundred fifty-six thousand, nine hundred eighty-nine".