116421601 has 2 divisors, whose sum is σ = 116421602. Its totient is φ = 116421600.

The previous prime is 116421587. The next prime is 116421629. The reversal of 116421601 is 106124611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78783376 + 37638225 = 8876^2 + 6135^2 .

It is an emirp because it is prime and its reverse (106124611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 116421601 - 2¹⁷ = 116290529 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (116421901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58210800 + 58210801.

It is an arithmetic number, because the mean of its divisors is an integer number (58210801).

Almost surely, 2^116421601 is an apocalyptic number.

It is an amenable number.

116421601 is a deficient number, since it is larger than the sum of its proper divisors (1).

116421601 is an equidigital number, since it uses as much as digits as its factorization.

116421601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 116421601 is about 10789.8841977104. The cubic root of 116421601 is about 488.2900287624.

The spelling of 116421601 in words is "one hundred sixteen million, four hundred twenty-one thousand, six hundred one".