16054991 has 2 divisors, whose sum is σ = 16054992. Its totient is φ = 16054990.

The previous prime is 16054901. The next prime is 16054999. The reversal of 16054991 is 19945061.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16054991 - 2²² = 11860687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16054999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8027495 + 8027496.

It is an arithmetic number, because the mean of its divisors is an integer number (8027496).

Almost surely, 2^16054991 is an apocalyptic number.

16054991 is a deficient number, since it is larger than the sum of its proper divisors (1).

16054991 is an equidigital number, since it uses as much as digits as its factorization.

16054991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 16054991 is about 4006.8679788583. The cubic root of 16054991 is about 252.2725645389.

The spelling of 16054991 in words is "sixteen million, fifty-four thousand, nine hundred ninety-one".