1513663427 has 2 divisors, whose sum is σ = 1513663428. Its totient is φ = 1513663426.

The previous prime is 1513663423. The next prime is 1513663469. The reversal of 1513663427 is 7243663151.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1513663427 - 2² = 1513663423 is a prime.

It is not a weakly prime, because it can be changed into another prime (1513663421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 756831713 + 756831714.

It is an arithmetic number, because the mean of its divisors is an integer number (756831714).

Almost surely, 2^1513663427 is an apocalyptic number.

1513663427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1513663427 is an equidigital number, since it uses as much as digits as its factorization.

1513663427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 38.

The square root of 1513663427 is about 38905.8276740131. The cubic root of 1513663427 is about 1148.1794577045.

The spelling of 1513663427 in words is "one billion, five hundred thirteen million, six hundred sixty-three thousand, four hundred twenty-seven".