16401337 has 2 divisors, whose sum is σ = 16401338. Its totient is φ = 16401336.

The previous prime is 16401317. The next prime is 16401347. The reversal of 16401337 is 73310461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10732176 + 5669161 = 3276^2 + 2381^2 .

It is a cyclic number.

It is not a de Polignac number, because 16401337 - 2¹¹ = 16399289 is a prime.

It is not a weakly prime, because it can be changed into another prime (16401317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8200668 + 8200669.

It is an arithmetic number, because the mean of its divisors is an integer number (8200669).

Almost surely, 2^16401337 is an apocalyptic number.

It is an amenable number.

16401337 is a deficient number, since it is larger than the sum of its proper divisors (1).

16401337 is an equidigital number, since it uses as much as digits as its factorization.

16401337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 16401337 is about 4049.8564172079. The cubic root of 16401337 is about 254.0737225810.

Adding to 16401337 its reverse (73310461), we get a palindrome (89711798).

The spelling of 16401337 in words is "sixteen million, four hundred one thousand, three hundred thirty-seven".