3138647541 has 8 divisors (see below), whose sum is σ = 4190438784. Its totient is φ = 2089644000.

The previous prime is 3138647489. The next prime is 3138647557. The reversal of 3138647541 is 1457468313.

It is a happy number.

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

It is not a de Polignac number, because 3138647541 - 2¹⁰ = 3138646517 is a prime.

It is a super-2 number, since 2×3138647541² = 19702216773250693362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3138647493 and 3138647502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138647591) 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, 694296 + ... + 698801.

It is an arithmetic number, because the mean of its divisors is an integer number (523804848).

Almost surely, 2^3138647541 is an apocalyptic number.

It is an amenable number.

3138647541 is a deficient number, since it is larger than the sum of its proper divisors (1051791243).

3138647541 is a wasteful number, since it uses less digits than its factorization.

3138647541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393851.

The product of its digits is 241920, while the sum is 42.

The square root of 3138647541 is about 56023.6337718288. The cubic root of 3138647541 is about 1464.1340797913.

The spelling of 3138647541 in words is "three billion, one hundred thirty-eight million, six hundred forty-seven thousand, five hundred forty-one".