114811867921 has 3 divisors (see below), whose sum is σ = 114812206761. Its totient is φ = 114811529082.

The previous prime is 114811867861. The next prime is 114811867943. The reversal of 114811867921 is 129768118411.

It is a happy number.

The square root of 114811867921 is 338839.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 114811867921 - 2¹⁵ = 114811835153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (114811867721) 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 2 ways as a sum of consecutive naturals, for example, 169420 + ... + 508258.

It is an arithmetic number, because the mean of its divisors is an integer number (38270735587).

Almost surely, 2^114811867921 is an apocalyptic number.

114811867921 is the 338839-th square number.

114811867921 is the 169420-th centered octagonal number.

It is an amenable number.

114811867921 is a deficient number, since it is larger than the sum of its proper divisors (338840).

114811867921 is an frugal number, since it uses more digits than its factorization.

114811867921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677678 (or 338839 counting only the distinct ones).

The product of its digits is 193536, while the sum is 49.

Multiplying 114811867921 by its sum of digits (49), we get a square (5625781528129 = 2371873²).

The spelling of 114811867921 in words is "one hundred fourteen billion, eight hundred eleven million, eight hundred sixty-seven thousand, nine hundred twenty-one".