1251020483 has 4 divisors (see below), whose sum is σ = 1272224280. Its totient is φ = 1229816688.

The previous prime is 1251020467. The next prime is 1251020509. The reversal of 1251020483 is 3840201521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3840201521 = 13 ⋅295400117.

It is a cyclic number.

It is not a de Polignac number, because 1251020483 - 2⁴ = 1251020467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1251020423) 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 in 3 ways as a sum of consecutive naturals, for example, 10601810 + ... + 10601927.

It is an arithmetic number, because the mean of its divisors is an integer number (318056070).

Almost surely, 2^1251020483 is an apocalyptic number.

1251020483 is a deficient number, since it is larger than the sum of its proper divisors (21203797).

1251020483 is an equidigital number, since it uses as much as digits as its factorization.

1251020483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21203796.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1251020483 is about 35369.7679240337. The cubic root of 1251020483 is about 1077.5104071432.

The spelling of 1251020483 in words is "one billion, two hundred fifty-one million, twenty thousand, four hundred eighty-three".