116346421 has 2 divisors, whose sum is σ = 116346422. Its totient is φ = 116346420.

The previous prime is 116346403. The next prime is 116346437. The reversal of 116346421 is 124643611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79014321 + 37332100 = 8889^2 + 6110^2 .

It is an emirp because it is prime and its reverse (124643611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 116346421 - 2²¹ = 114249269 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 116346421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116340421) 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 as a sum of consecutive naturals, namely, 58173210 + 58173211.

It is an arithmetic number, because the mean of its divisors is an integer number (58173211).

Almost surely, 2^116346421 is an apocalyptic number.

It is an amenable number.

116346421 is a deficient number, since it is larger than the sum of its proper divisors (1).

116346421 is an equidigital number, since it uses as much as digits as its factorization.

116346421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 28.

The square root of 116346421 is about 10786.3998164355. The cubic root of 116346421 is about 488.1849006513.

The spelling of 116346421 in words is "one hundred sixteen million, three hundred forty-six thousand, four hundred twenty-one".