137585047 has 4 divisors (see below), whose sum is σ = 137618136. Its totient is φ = 137551960.

The previous prime is 137585039. The next prime is 137585059. The reversal of 137585047 is 740585731.

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 137585047 - 2³ = 137585039 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137585017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9229 + ... + 18982.

It is an arithmetic number, because the mean of its divisors is an integer number (34404534).

Almost surely, 2^137585047 is an apocalyptic number.

137585047 is a deficient number, since it is larger than the sum of its proper divisors (33089).

137585047 is an equidigital number, since it uses as much as digits as its factorization.

137585047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33088.

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 137585047 is about 11729.6652552407. The cubic root of 137585047 is about 516.2464507375.

The spelling of 137585047 in words is "one hundred thirty-seven million, five hundred eighty-five thousand, forty-seven".