116354921 has 2 divisors, whose sum is σ = 116354922. Its totient is φ = 116354920.

The previous prime is 116354911. The next prime is 116354923. The reversal of 116354921 is 129453611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108576400 + 7778521 = 10420^2 + 2789^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116354921 is a prime.

Together with 116354923, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (116354923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58177460 + 58177461.

It is an arithmetic number, because the mean of its divisors is an integer number (58177461).

Almost surely, 2^116354921 is an apocalyptic number.

It is an amenable number.

116354921 is a deficient number, since it is larger than the sum of its proper divisors (1).

116354921 is an equidigital number, since it uses as much as digits as its factorization.

116354921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 32.

The square root of 116354921 is about 10786.7938239312. The cubic root of 116354921 is about 488.1967889144.

The spelling of 116354921 in words is "one hundred sixteen million, three hundred fifty-four thousand, nine hundred twenty-one".