1250481663 has 6 divisors (see below), whose sum is σ = 1806251304. Its totient is φ = 833654436.

The previous prime is 1250481647. The next prime is 1250481679. The reversal of 1250481663 is 3661840521.

It is a happy number.

1250481663 is a `hidden beast` number, since 12 + 504 + 81 + 6 + 63 = 666.

It is an interprime number because it is at equal distance from previous prime (1250481647) and next prime (1250481679).

It is not a de Polignac number, because 1250481663 - 2⁴ = 1250481647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1250488663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69471195 + ... + 69471212.

It is an arithmetic number, because the mean of its divisors is an integer number (301041884).

Almost surely, 2^1250481663 is an apocalyptic number.

1250481663 is a deficient number, since it is larger than the sum of its proper divisors (555769641).

1250481663 is a wasteful number, since it uses less digits than its factorization.

1250481663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138942413 (or 138942410 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 1250481663 is about 35362.1501467317. The cubic root of 1250481663 is about 1077.3556887783.

The spelling of 1250481663 in words is "one billion, two hundred fifty million, four hundred eighty-one thousand, six hundred sixty-three".