1525851161 has 2 divisors, whose sum is σ = 1525851162. Its totient is φ = 1525851160.

The previous prime is 1525851127. The next prime is 1525851191. The reversal of 1525851161 is 1611585251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1523731225 + 2119936 = 39035^2 + 1456^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1525851161 is a prime.

It is not a weakly prime, because it can be changed into another prime (1525851101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762925580 + 762925581.

It is an arithmetic number, because the mean of its divisors is an integer number (762925581).

Almost surely, 2^1525851161 is an apocalyptic number.

It is an amenable number.

1525851161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525851161 is an equidigital number, since it uses as much as digits as its factorization.

1525851161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12000, while the sum is 35.

The square root of 1525851161 is about 39062.1448591856. The cubic root of 1525851161 is about 1151.2528654482.

The spelling of 1525851161 in words is "one billion, five hundred twenty-five million, eight hundred fifty-one thousand, one hundred sixty-one".