281472407 has 2 divisors, whose sum is σ = 281472408. Its totient is φ = 281472406.

The previous prime is 281472377. The next prime is 281472439. The reversal of 281472407 is 704274182.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 281472407 - 2⁸ = 281472151 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 (281472907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140736203 + 140736204.

It is an arithmetic number, because the mean of its divisors is an integer number (140736204).

Almost surely, 2^281472407 is an apocalyptic number.

281472407 is a deficient number, since it is larger than the sum of its proper divisors (1).

281472407 is an equidigital number, since it uses as much as digits as its factorization.

281472407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 281472407 is about 16777.1394164798. The cubic root of 281472407 is about 655.3580056360.

The spelling of 281472407 in words is "two hundred eighty-one million, four hundred seventy-two thousand, four hundred seven".