1261571483 has 4 divisors (see below), whose sum is σ = 1261644840. Its totient is φ = 1261498128.

The previous prime is 1261571471. The next prime is 1261571491. The reversal of 1261571483 is 3841751621.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1261571483 - 2⁶ = 1261571419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1261571383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4616 + ... + 50442.

It is an arithmetic number, because the mean of its divisors is an integer number (315411210).

Almost surely, 2^1261571483 is an apocalyptic number.

1261571483 is a deficient number, since it is larger than the sum of its proper divisors (73357).

1261571483 is an equidigital number, since it uses as much as digits as its factorization.

1261571483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73356.

The product of its digits is 40320, while the sum is 38.

The square root of 1261571483 is about 35518.6075599819. The cubic root of 1261571483 is about 1080.5311410640.

The spelling of 1261571483 in words is "one billion, two hundred sixty-one million, five hundred seventy-one thousand, four hundred eighty-three".