1247483142 has 12 divisors (see below), whose sum is σ = 2702880180. Its totient is φ = 415827708.

The previous prime is 1247483119. The next prime is 1247483143. The reversal of 1247483142 is 2413847421.

It is a junction number, because it is equal to n+sod(n) for n = 1247483097 and 1247483106.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 34652292 + ... + 34652327.

It is an arithmetic number, because the mean of its divisors is an integer number (225240015).

Almost surely, 2^1247483142 is an apocalyptic number.

1247483142 is an abundant number, since it is smaller than the sum of its proper divisors (1455397038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1247483142 is a wasteful number, since it uses less digits than its factorization.

1247483142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69304627 (or 69304624 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 1247483142 is about 35319.7273772038. The cubic root of 1247483142 is about 1076.4938717392.

The spelling of 1247483142 in words is "one billion, two hundred forty-seven million, four hundred eighty-three thousand, one hundred forty-two".