2145614130251 has 16 divisors (see below), whose sum is σ = 2191020191040. Its totient is φ = 2100661516800.

The previous prime is 2145614130241. The next prime is 2145614130259. The reversal of 2145614130251 is 1520314165412.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2145614130251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145614130259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15063695 + ... + 15205463.

It is an arithmetic number, because the mean of its divisors is an integer number (136938761940).

Almost surely, 2^{2145614130251} is an apocalyptic number.

2145614130251 is a deficient number, since it is larger than the sum of its proper divisors (45406060789).

2145614130251 is a wasteful number, since it uses less digits than its factorization.

2145614130251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143366.

The product of its (nonzero) digits is 28800, while the sum is 35.

Adding to 2145614130251 its reverse (1520314165412), we get a palindrome (3665928295663).

The spelling of 2145614130251 in words is "two trillion, one hundred forty-five billion, six hundred fourteen million, one hundred thirty thousand, two hundred fifty-one".