1049525861 has 2 divisors, whose sum is σ = 1049525862. Its totient is φ = 1049525860.

The previous prime is 1049525849. The next prime is 1049525927. The reversal of 1049525861 is 1685259401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 854392900 + 195132961 = 29230^2 + 13969^2 .

It is a cyclic number.

It is not a de Polignac number, because 1049525861 - 2⁶ = 1049525797 is a prime.

It is a super-2 number, since 2×1049525861² = 2203009065815582642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1049525261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 524762930 + 524762931.

It is an arithmetic number, because the mean of its divisors is an integer number (524762931).

Almost surely, 2^1049525861 is an apocalyptic number.

It is an amenable number.

1049525861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1049525861 is an equidigital number, since it uses as much as digits as its factorization.

1049525861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 41.

The square root of 1049525861 is about 32396.3865423291. The cubic root of 1049525861 is about 1016.2433454789.

The spelling of 1049525861 in words is "one billion, forty-nine million, five hundred twenty-five thousand, eight hundred sixty-one".