1560257 has 2 divisors, whose sum is σ = 1560258. Its totient is φ = 1560256.

The previous prime is 1560241. The next prime is 1560263. The reversal of 1560257 is 7520651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1560001 + 256 = 1249^2 + 16^2 .

It is a cyclic number.

It is not a de Polignac number, because 1560257 - 2⁴ = 1560241 is a prime.

It is not a weakly prime, because it can be changed into another prime (1560217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 780128 + 780129.

It is an arithmetic number, because the mean of its divisors is an integer number (780129).

2^1560257 is an apocalyptic number.

It is an amenable number.

1560257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1560257 is an equidigital number, since it uses as much as digits as its factorization.

1560257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 1560257 is about 1249.1024777815. The cubic root of 1560257 is about 115.9841684696.

The spelling of 1560257 in words is "one million, five hundred sixty thousand, two hundred fifty-seven".