138313347 has 4 divisors (see below), whose sum is σ = 184417800. Its totient is φ = 92208896.

The previous prime is 138313313. The next prime is 138313349. The reversal of 138313347 is 743313831.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 138313347 - 2¹² = 138309251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138313349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23052222 + ... + 23052227.

It is an arithmetic number, because the mean of its divisors is an integer number (46104450).

Almost surely, 2^138313347 is an apocalyptic number.

138313347 is a deficient number, since it is larger than the sum of its proper divisors (46104453).

138313347 is an equidigital number, since it uses as much as digits as its factorization.

138313347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46104452.

The product of its digits is 18144, while the sum is 33.

The square root of 138313347 is about 11760.6694962489. The cubic root of 138313347 is about 517.1557569629.

The spelling of 138313347 in words is "one hundred thirty-eight million, three hundred thirteen thousand, three hundred forty-seven".