16381007 has 2 divisors, whose sum is σ = 16381008. Its totient is φ = 16381006.

The previous prime is 16381003. The next prime is 16381033. The reversal of 16381007 is 70018361.

It is an a-pointer prime, because the next prime (16381033) can be obtained adding 16381007 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16381007 - 2² = 16381003 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16381003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8190503 + 8190504.

It is an arithmetic number, because the mean of its divisors is an integer number (8190504).

Almost surely, 2^16381007 is an apocalyptic number.

16381007 is a deficient number, since it is larger than the sum of its proper divisors (1).

16381007 is an equidigital number, since it uses as much as digits as its factorization.

16381007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 16381007 is about 4047.3456734013. The cubic root of 16381007 is about 253.9687015809.

Adding to 16381007 its reverse (70018361), we get a palindrome (86399368).

The spelling of 16381007 in words is "sixteen million, three hundred eighty-one thousand, seven".