281374057 has 2 divisors, whose sum is σ = 281374058. Its totient is φ = 281374056.

The previous prime is 281374033. The next prime is 281374109. The reversal of 281374057 is 750473182.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 215179561 + 66194496 = 14669^2 + 8136^2 .

It is a cyclic number.

It is not a de Polignac number, because 281374057 - 2⁷ = 281373929 is a prime.

It is not a weakly prime, because it can be changed into another prime (281374957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140687028 + 140687029.

It is an arithmetic number, because the mean of its divisors is an integer number (140687029).

Almost surely, 2^281374057 is an apocalyptic number.

It is an amenable number.

281374057 is a deficient number, since it is larger than the sum of its proper divisors (1).

281374057 is an equidigital number, since it uses as much as digits as its factorization.

281374057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 281374057 is about 16774.2080886103. The cubic root of 281374057 is about 655.2816666334.

The spelling of 281374057 in words is "two hundred eighty-one million, three hundred seventy-four thousand, fifty-seven".