137447 has 2 divisors, whose sum is σ = 137448. Its totient is φ = 137446.

The previous prime is 137443. The next prime is 137453. The reversal of 137447 is 744731.

137447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137447 - 2² = 137443 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68723 + 68724.

It is an arithmetic number, because the mean of its divisors is an integer number (68724).

2¹³⁷⁴⁴⁷ is an apocalyptic number.

137447 is a deficient number, since it is larger than the sum of its proper divisors (1).

137447 is an equidigital number, since it uses as much as digits as its factorization.

137447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2352, while the sum is 26.

The square root of 137447 is about 370.7384522814. The cubic root of 137447 is about 51.6073733029.

The spelling of 137447 in words is "one hundred thirty-seven thousand, four hundred forty-seven".