1247483146 has 16 divisors (see below), whose sum is σ = 2303046144. Its totient is φ = 493509744.

The previous prime is 1247483143. The next prime is 1247483201. The reversal of 1247483146 is 6413847421.

It is a junction number, because it is equal to n+sod(n) for n = 1247483099 and 1247483108.

It is not an unprimeable number, because it can be changed into a prime (1247483143) 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 7 ways as a sum of consecutive naturals, for example, 3426970 + ... + 3427333.

It is an arithmetic number, because the mean of its divisors is an integer number (143940384).

Almost surely, 2^1247483146 is an apocalyptic number.

1247483146 is a deficient number, since it is larger than the sum of its proper divisors (1055562998).

1247483146 is a wasteful number, since it uses less digits than its factorization.

1247483146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6854325.

The product of its digits is 129024, while the sum is 40.

The square root of 1247483146 is about 35319.7274338294. The cubic root of 1247483146 is about 1076.4938728898.

The spelling of 1247483146 in words is "one billion, two hundred forty-seven million, four hundred eighty-three thousand, one hundred forty-six".