1347385143 has 16 divisors (see below), whose sum is σ = 1975873536. Its totient is φ = 811517280.

The previous prime is 1347385139. The next prime is 1347385157. The reversal of 1347385143 is 3415837431.

It is not a de Polignac number, because 1347385143 - 2² = 1347385139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1347385043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365703 + ... + 369368.

It is an arithmetic number, because the mean of its divisors is an integer number (123492096).

Almost surely, 2^1347385143 is an apocalyptic number.

1347385143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1347385143 is a deficient number, since it is larger than the sum of its proper divisors (628488393).

1347385143 is a wasteful number, since it uses less digits than its factorization.

1347385143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735134.

The product of its digits is 120960, while the sum is 39.

The square root of 1347385143 is about 36706.7451975792. The cubic root of 1347385143 is about 1104.4954168604.

The spelling of 1347385143 in words is "one billion, three hundred forty-seven million, three hundred eighty-five thousand, one hundred forty-three".