1513133263 has 4 divisors (see below), whose sum is σ = 1602141120. Its totient is φ = 1424125408.

The previous prime is 1513133239. The next prime is 1513133291. The reversal of 1513133263 is 3623313151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3623313151 = 3557 ⋅1018643.

It is a cyclic number.

It is not a de Polignac number, because 1513133263 - 2²⁵ = 1479578831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1513133213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44503903 + ... + 44503936.

It is an arithmetic number, because the mean of its divisors is an integer number (400535280).

Almost surely, 2^1513133263 is an apocalyptic number.

1513133263 is a deficient number, since it is larger than the sum of its proper divisors (89007857).

1513133263 is an equidigital number, since it uses as much as digits as its factorization.

1513133263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89007856.

The product of its digits is 4860, while the sum is 28.

The square root of 1513133263 is about 38899.0136507341. The cubic root of 1513133263 is about 1148.0453912435.

The spelling of 1513133263 in words is "one billion, five hundred thirteen million, one hundred thirty-three thousand, two hundred sixty-three".