1025871061 has 2 divisors, whose sum is σ = 1025871062. Its totient is φ = 1025871060.

The previous prime is 1025871053. The next prime is 1025871071. The reversal of 1025871061 is 1601785201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 971568900 + 54302161 = 31170^2 + 7369^2 .

It is an emirp because it is prime and its reverse (1601785201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1025871061 - 2³ = 1025871053 is a prime.

It is a super-2 number, since 2×1025871061² = 2104822867594531442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1025871031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512935530 + 512935531.

It is an arithmetic number, because the mean of its divisors is an integer number (512935531).

Almost surely, 2^1025871061 is an apocalyptic number.

It is an amenable number.

1025871061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025871061 is an equidigital number, since it uses as much as digits as its factorization.

1025871061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 31.

The square root of 1025871061 is about 32029.2219855556. The cubic root of 1025871061 is about 1008.5503698070.

The spelling of 1025871061 in words is "one billion, twenty-five million, eight hundred seventy-one thousand, sixty-one".