1048686257 has 2 divisors, whose sum is σ = 1048686258. Its totient is φ = 1048686256.

The previous prime is 1048686253. The next prime is 1048686269. The reversal of 1048686257 is 7526868401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 956603041 + 92083216 = 30929^2 + 9596^2 .

It is a cyclic number.

It is not a de Polignac number, because 1048686257 - 2² = 1048686253 is a prime.

It is not a weakly prime, because it can be changed into another prime (1048686253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 524343128 + 524343129.

It is an arithmetic number, because the mean of its divisors is an integer number (524343129).

Almost surely, 2^1048686257 is an apocalyptic number.

It is an amenable number.

1048686257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1048686257 is an equidigital number, since it uses as much as digits as its factorization.

1048686257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 1048686257 is about 32383.4256526390. The cubic root of 1048686257 is about 1015.9722803445.

The spelling of 1048686257 in words is "one billion, forty-eight million, six hundred eighty-six thousand, two hundred fifty-seven".