1347291144 has 56 divisors (see below), whose sum is σ = 3787540110. Its totient is φ = 449095104.

The previous prime is 1347291133. The next prime is 1347291151. The reversal of 1347291144 is 4411927431.

It can be written as a sum of positive squares in only one way, i.e., 1039288644 + 308002500 = 32238^2 + 17550^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1347291099 and 1347291108.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 109677 + ... + 121340.

Almost surely, 2^1347291144 is an apocalyptic number.

It is an amenable number.

1347291144 is an abundant number, since it is smaller than the sum of its proper divisors (2440248966).

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

1347291144 is an equidigital number, since it uses as much as digits as its factorization.

1347291144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231041 (or 231022 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 1347291144 is about 36705.4647702491. The cubic root of 1347291144 is about 1104.4697315840.

The spelling of 1347291144 in words is "one billion, three hundred forty-seven million, two hundred ninety-one thousand, one hundred forty-four".