3138653509 has 8 divisors (see below), whose sum is σ = 3343671360. Its totient is φ = 2935901376.

The previous prime is 3138653473. The next prime is 3138653513. The reversal of 3138653509 is 9053568313.

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

It is a cyclic number.

It is not a de Polignac number, because 3138653509 - 2⁷ = 3138653381 is a prime.

It is a super-2 number, since 2×3138653509² = 19702291699116026162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138653569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 563569 + ... + 569110.

It is an arithmetic number, because the mean of its divisors is an integer number (417958920).

Almost surely, 2^3138653509 is an apocalyptic number.

It is an amenable number.

3138653509 is a deficient number, since it is larger than the sum of its proper divisors (205017851).

3138653509 is a wasteful number, since it uses less digits than its factorization.

3138653509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132859.

The product of its (nonzero) digits is 291600, while the sum is 43.

The square root of 3138653509 is about 56023.6870350390. The cubic root of 3138653509 is about 1464.1350077862.

The spelling of 3138653509 in words is "three billion, one hundred thirty-eight million, six hundred fifty-three thousand, five hundred nine".