1513638213 has 4 divisors (see below), whose sum is σ = 2018184288. Its totient is φ = 1009092140.

The previous prime is 1513638179. The next prime is 1513638239. The reversal of 1513638213 is 3128363151.

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 1513638213 - 2¹⁴ = 1513621829 is a prime.

It is a super-2 number, since 2×1513638213² = 4582201279707666738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1513638913) 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, 252273033 + ... + 252273038.

It is an arithmetic number, because the mean of its divisors is an integer number (504546072).

Almost surely, 2^1513638213 is an apocalyptic number.

It is an amenable number.

1513638213 is a deficient number, since it is larger than the sum of its proper divisors (504546075).

1513638213 is an equidigital number, since it uses as much as digits as its factorization.

1513638213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504546074.

The product of its digits is 12960, while the sum is 33.

The square root of 1513638213 is about 38905.5036338048. The cubic root of 1513638213 is about 1148.1730823644.

The spelling of 1513638213 in words is "one billion, five hundred thirteen million, six hundred thirty-eight thousand, two hundred thirteen".