2145114102251 has 4 divisors (see below), whose sum is σ = 2145143607432. Its totient is φ = 2145084597072.

The previous prime is 2145114102233. The next prime is 2145114102277. The reversal of 2145114102251 is 1522014115412.

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-2145114102251 is a prime.

It is a super-2 number, since 2×2145114102251² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145114102281) 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, 14643266 + ... + 14789031.

It is an arithmetic number, because the mean of its divisors is an integer number (536285901858).

Almost surely, 2^{2145114102251} is an apocalyptic number.

2145114102251 is a deficient number, since it is larger than the sum of its proper divisors (29505181).

2145114102251 is an equidigital number, since it uses as much as digits as its factorization.

2145114102251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29505180.

The product of its (nonzero) digits is 3200, while the sum is 29.

Adding to 2145114102251 its reverse (1522014115412), we get a palindrome (3667128217663).

The spelling of 2145114102251 in words is "two trillion, one hundred forty-five billion, one hundred fourteen million, one hundred two thousand, two hundred fifty-one".