16047431 has 2 divisors, whose sum is σ = 16047432. Its totient is φ = 16047430.

The previous prime is 16047407. The next prime is 16047433. The reversal of 16047431 is 13474061.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16047431 - 2¹⁴ = 16031047 is a prime.

It is a super-2 number, since 2×16047431² = 515040083399522, which contains 22 as substring.

Together with 16047433, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_1033964 and since 16047431 and 1033964 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16047431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16047433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8023715 + 8023716.

It is an arithmetic number, because the mean of its divisors is an integer number (8023716).

Almost surely, 2^16047431 is an apocalyptic number.

16047431 is a deficient number, since it is larger than the sum of its proper divisors (1).

16047431 is an equidigital number, since it uses as much as digits as its factorization.

16047431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 16047431 is about 4005.9244875559. The cubic root of 16047431 is about 252.2329614851.

The spelling of 16047431 in words is "sixteen million, forty-seven thousand, four hundred thirty-one".