1309132853 has 24 divisors (see below), whose sum is σ = 1569267000. Its totient is φ = 1088131968.

The previous prime is 1309132849. The next prime is 1309132907. The reversal of 1309132853 is 3582319031.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 360924004 + 948208849 = 18998^2 + 30793^2 .

It is not a de Polignac number, because 1309132853 - 2² = 1309132849 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1309132823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 631703 + ... + 633771.

It is an arithmetic number, because the mean of its divisors is an integer number (65386125).

Almost surely, 2^1309132853 is an apocalyptic number.

It is an amenable number.

1309132853 is a deficient number, since it is larger than the sum of its proper divisors (260134147).

1309132853 is a wasteful number, since it uses less digits than its factorization.

1309132853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2469 (or 2462 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 1309132853 is about 36181.9409788917. The cubic root of 1309132853 is about 1093.9426984215.

The spelling of 1309132853 in words is "one billion, three hundred nine million, one hundred thirty-two thousand, eight hundred fifty-three".