116491643 has 2 divisors, whose sum is σ = 116491644. Its totient is φ = 116491642.

The previous prime is 116491631. The next prime is 116491657. The reversal of 116491643 is 346194611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 116491643 - 2²⁶ = 49382779 is a prime.

It is not a weakly prime, because it can be changed into another prime (116490643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58245821 + 58245822.

It is an arithmetic number, because the mean of its divisors is an integer number (58245822).

Almost surely, 2^116491643 is an apocalyptic number.

116491643 is a deficient number, since it is larger than the sum of its proper divisors (1).

116491643 is an equidigital number, since it uses as much as digits as its factorization.

116491643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 35.

The square root of 116491643 is about 10793.1294349693. The cubic root of 116491643 is about 488.3879314240.

The spelling of 116491643 in words is "one hundred sixteen million, four hundred ninety-one thousand, six hundred forty-three".