1012564171 has 2 divisors, whose sum is σ = 1012564172. Its totient is φ = 1012564170.

The previous prime is 1012564127. The next prime is 1012564181. The reversal of 1012564171 is 1714652101.

It is a strong prime.

It is an emirp because it is prime and its reverse (1714652101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1012564171 - 2¹¹ = 1012562123 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012564181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506282085 + 506282086.

It is an arithmetic number, because the mean of its divisors is an integer number (506282086).

Almost surely, 2^1012564171 is an apocalyptic number.

1012564171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012564171 is an equidigital number, since it uses as much as digits as its factorization.

1012564171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 1012564171 is about 31820.8134874016. The cubic root of 1012564171 is about 1004.1706385921.

The spelling of 1012564171 in words is "one billion, twelve million, five hundred sixty-four thousand, one hundred seventy-one".