1309475343 has 16 divisors (see below), whose sum is σ = 1951149312. Its totient is φ = 774264000.

The previous prime is 1309475341. The next prime is 1309475347. The reversal of 1309475343 is 3435749031.

It is not a de Polignac number, because 1309475343 - 2¹ = 1309475341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1309475341) 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, 482563 + ... + 485268.

It is an arithmetic number, because the mean of its divisors is an integer number (121946832).

Almost surely, 2^1309475343 is an apocalyptic number.

1309475343 is a deficient number, since it is larger than the sum of its proper divisors (641673969).

1309475343 is a wasteful number, since it uses less digits than its factorization.

1309475343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967886.

The product of its (nonzero) digits is 136080, while the sum is 39.

The square root of 1309475343 is about 36186.6735553297. The cubic root of 1309475343 is about 1094.0380877132.

The spelling of 1309475343 in words is "one billion, three hundred nine million, four hundred seventy-five thousand, three hundred forty-three".