2801631513 has 4 divisors (see below), whose sum is σ = 3735508688. Its totient is φ = 1867754340.

The previous prime is 2801631509. The next prime is 2801631517. The reversal of 2801631513 is 3151361082.

2801631513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an interprime number because it is at equal distance from previous prime (2801631509) and next prime (2801631517).

It is not a de Polignac number, because 2801631513 - 2² = 2801631509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2801631517) 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, 466938583 + ... + 466938588.

It is an arithmetic number, because the mean of its divisors is an integer number (933877172).

Almost surely, 2^2801631513 is an apocalyptic number.

It is an amenable number.

2801631513 is a deficient number, since it is larger than the sum of its proper divisors (933877175).

2801631513 is an equidigital number, since it uses as much as digits as its factorization.

2801631513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933877174.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 2801631513 is about 52930.4403250152. The cubic root of 2801631513 is about 1409.7334494376.

Adding to 2801631513 its reverse (3151361082), we get a palindrome (5952992595).

The spelling of 2801631513 in words is "two billion, eight hundred one million, six hundred thirty-one thousand, five hundred thirteen".