1513420513 has 4 divisors (see below), whose sum is σ = 1651004208. Its totient is φ = 1375836820.

The previous prime is 1513420507. The next prime is 1513420523. The reversal of 1513420513 is 3150243151.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 1513420513 - 2⁹ = 1513420001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1513420523) 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, 68791831 + ... + 68791852.

It is an arithmetic number, because the mean of its divisors is an integer number (412751052).

Almost surely, 2^1513420513 is an apocalyptic number.

It is an amenable number.

1513420513 is a deficient number, since it is larger than the sum of its proper divisors (137583695).

1513420513 is a wasteful number, since it uses less digits than its factorization.

1513420513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137583694.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1513420513 is about 38902.7057285223. The cubic root of 1513420513 is about 1148.1180341452.

Adding to 1513420513 its reverse (3150243151), we get a palindrome (4663663664).

The spelling of 1513420513 in words is "one billion, five hundred thirteen million, four hundred twenty thousand, five hundred thirteen".