281696047 has 2 divisors, whose sum is σ = 281696048. Its totient is φ = 281696046.

The previous prime is 281696021. The next prime is 281696057. The reversal of 281696047 is 740696182.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 281696047 - 2¹¹ = 281693999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 281695994 and 281696012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (281696057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140848023 + 140848024.

It is an arithmetic number, because the mean of its divisors is an integer number (140848024).

Almost surely, 2^281696047 is an apocalyptic number.

281696047 is a deficient number, since it is larger than the sum of its proper divisors (1).

281696047 is an equidigital number, since it uses as much as digits as its factorization.

281696047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 281696047 is about 16783.8031149081. The cubic root of 281696047 is about 655.5315282276.

The spelling of 281696047 in words is "two hundred eighty-one million, six hundred ninety-six thousand, forty-seven".