1247483147 has 8 divisors (see below), whose sum is σ = 1272133296. Its totient is φ = 1223073792.

The previous prime is 1247483143. The next prime is 1247483201. The reversal of 1247483147 is 7413847421.

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

It is a cyclic number.

It is not a de Polignac number, because 1247483147 - 2² = 1247483143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1247483143) 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, 49718 + ... + 70475.

It is an arithmetic number, because the mean of its divisors is an integer number (159016662).

Almost surely, 2^1247483147 is an apocalyptic number.

1247483147 is a deficient number, since it is larger than the sum of its proper divisors (24650149).

1247483147 is a wasteful number, since it uses less digits than its factorization.

1247483147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120397.

The product of its digits is 150528, while the sum is 41.

The square root of 1247483147 is about 35319.7274479858. The cubic root of 1247483147 is about 1076.4938731775.

The spelling of 1247483147 in words is "one billion, two hundred forty-seven million, four hundred eighty-three thousand, one hundred forty-seven".