2151513151 has 4 divisors (see below), whose sum is σ = 2151954232. Its totient is φ = 2151072072.

The previous prime is 2151513113. The next prime is 2151513167. The reversal of 2151513151 is 1513151512.

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-2151513151 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 (2151513191) 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, 213141 + ... + 223006.

It is an arithmetic number, because the mean of its divisors is an integer number (537988558).

Almost surely, 2^2151513151 is an apocalyptic number.

2151513151 is a deficient number, since it is larger than the sum of its proper divisors (441081).

2151513151 is an equidigital number, since it uses as much as digits as its factorization.

2151513151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441080.

The product of its digits is 750, while the sum is 25.

The square root of 2151513151 is about 46384.4063344568. The cubic root of 2151513151 is about 1290.9655953790.

Adding to 2151513151 its reverse (1513151512), we get a palindrome (3664664663).

The spelling of 2151513151 in words is "two billion, one hundred fifty-one million, five hundred thirteen thousand, one hundred fifty-one".