83111401 has 2 divisors, whose sum is σ = 83111402. Its totient is φ = 83111400.

The previous prime is 83111381. The next prime is 83111437. The reversal of 83111401 is 10411138.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82810000 + 301401 = 9100^2 + 549^2 .

It is a cyclic number.

It is not a de Polignac number, because 83111401 - 2⁹ = 83110889 is a prime.

It is not a weakly prime, because it can be changed into another prime (83111101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41555700 + 41555701.

It is an arithmetic number, because the mean of its divisors is an integer number (41555701).

Almost surely, 2^83111401 is an apocalyptic number.

It is an amenable number.

83111401 is a deficient number, since it is larger than the sum of its proper divisors (1).

83111401 is an equidigital number, since it uses as much as digits as its factorization.

83111401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 83111401 is about 9116.5454531857. The cubic root of 83111401 is about 436.4021361378.

Adding to 83111401 its reverse (10411138), we get a palindrome (93522539).

The spelling of 83111401 in words is "eighty-three million, one hundred eleven thousand, four hundred one".