1247235483 has 8 divisors (see below), whose sum is σ = 1790902288. Its totient is φ = 767529504.

The previous prime is 1247235469. The next prime is 1247235497. The reversal of 1247235483 is 3845327421.

It is an interprime number because it is at equal distance from previous prime (1247235469) and next prime (1247235497).

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

It is not a de Polignac number, because 1247235483 - 2¹⁸ = 1246973339 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 31980397 = 1247235483 / (1 + 2 + 4 + 7 + 2 + 3 + 5 + 4 + 8 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1247235403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15990160 + ... + 15990237.

It is an arithmetic number, because the mean of its divisors is an integer number (223862786).

Almost surely, 2^1247235483 is an apocalyptic number.

1247235483 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1247235483 is a deficient number, since it is larger than the sum of its proper divisors (543666805).

1247235483 is a wasteful number, since it uses less digits than its factorization.

1247235483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31980413.

The product of its digits is 161280, while the sum is 39.

The square root of 1247235483 is about 35316.2212446349. The cubic root of 1247235483 is about 1076.4226293496.

The spelling of 1247235483 in words is "one billion, two hundred forty-seven million, two hundred thirty-five thousand, four hundred eighty-three".