1513230427 has 4 divisors (see below), whose sum is σ = 1520834800. Its totient is φ = 1505626056.

The previous prime is 1513230331. The next prime is 1513230451. The reversal of 1513230427 is 7240323151.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1513230427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1513230395 and 1513230404.

It is not an unprimeable number, because it can be changed into a prime (1513230457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3801888 + ... + 3802285.

It is an arithmetic number, because the mean of its divisors is an integer number (380208700).

Almost surely, 2^1513230427 is an apocalyptic number.

1513230427 is a deficient number, since it is larger than the sum of its proper divisors (7604373).

1513230427 is an equidigital number, since it uses as much as digits as its factorization.

1513230427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7604372.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 1513230427 is about 38900.2625569545. The cubic root of 1513230427 is about 1148.0699641606.

Adding to 1513230427 its reverse (7240323151), we get a palindrome (8753553578).

The spelling of 1513230427 in words is "one billion, five hundred thirteen million, two hundred thirty thousand, four hundred twenty-seven".