1250542481 has 2 divisors, whose sum is σ = 1250542482. Its totient is φ = 1250542480.

The previous prime is 1250542477. The next prime is 1250542519. The reversal of 1250542481 is 1842450521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 888934225 + 361608256 = 29815^2 + 19016^2 .

It is a cyclic number.

It is not a de Polignac number, because 1250542481 - 2² = 1250542477 is a prime.

It is a super-2 number, since 2×1250542481² = 3127712993571270722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1250542421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625271240 + 625271241.

It is an arithmetic number, because the mean of its divisors is an integer number (625271241).

Almost surely, 2^1250542481 is an apocalyptic number.

It is an amenable number.

1250542481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1250542481 is an equidigital number, since it uses as much as digits as its factorization.

1250542481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 1250542481 is about 35363.0100670178. The cubic root of 1250542481 is about 1077.3731544631.

The spelling of 1250542481 in words is "one billion, two hundred fifty million, five hundred forty-two thousand, four hundred eighty-one".