147278109213 has 24 divisors (see below), whose sum is σ = 228941491896. Its totient is φ = 90894873600.

The previous prime is 147278109211. The next prime is 147278109241. The reversal of 147278109213 is 312901872741.

147278109213 is a `hidden beast` number, since 1 + 472 + 7 + 81 + 0 + 92 + 13 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3517320249 + 143760788964 = 59307^2 + 379158^2 .

It is not a de Polignac number, because 147278109213 - 2¹ = 147278109211 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147278109211) 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, 7880848 + ... + 7899513.

It is an arithmetic number, because the mean of its divisors is an integer number (9539228829).

Almost surely, 2^147278109213 is an apocalyptic number.

It is an amenable number.

147278109213 is a deficient number, since it is larger than the sum of its proper divisors (81663382683).

147278109213 is a wasteful number, since it uses less digits than its factorization.

147278109213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15780445 (or 15780442 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The spelling of 147278109213 in words is "one hundred forty-seven billion, two hundred seventy-eight million, one hundred nine thousand, two hundred thirteen".