281461151 has 2 divisors, whose sum is σ = 281461152. Its totient is φ = 281461150.

The previous prime is 281461133. The next prime is 281461223. The reversal of 281461151 is 151164182.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-281461151 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (281461451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140730575 + 140730576.

It is an arithmetic number, because the mean of its divisors is an integer number (140730576).

Almost surely, 2^281461151 is an apocalyptic number.

281461151 is a deficient number, since it is larger than the sum of its proper divisors (1).

281461151 is an equidigital number, since it uses as much as digits as its factorization.

281461151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 29.

The square root of 281461151 is about 16776.8039566540. The cubic root of 281461151 is about 655.3492696606.

The spelling of 281461151 in words is "two hundred eighty-one million, four hundred sixty-one thousand, one hundred fifty-one".