1273147485 has 8 divisors (see below), whose sum is σ = 2037036000. Its totient is φ = 679011984.

The previous prime is 1273147481. The next prime is 1273147507. The reversal of 1273147485 is 5847413721.

1273147485 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1273147485 - 2² = 1273147481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1273147481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42438235 + ... + 42438264.

It is an arithmetic number, because the mean of its divisors is an integer number (254629500).

Almost surely, 2^1273147485 is an apocalyptic number.

1273147485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1273147485 is a deficient number, since it is larger than the sum of its proper divisors (763888515).

1273147485 is an equidigital number, since it uses as much as digits as its factorization.

1273147485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84876507.

The product of its digits is 188160, while the sum is 42.

The square root of 1273147485 is about 35681.1923147195. The cubic root of 1273147485 is about 1083.8260175310.

The spelling of 1273147485 in words is "one billion, two hundred seventy-three million, one hundred forty-seven thousand, four hundred eighty-five".