137532047 has 2 divisors, whose sum is σ = 137532048. Its totient is φ = 137532046.

The previous prime is 137532001. The next prime is 137532049. The reversal of 137532047 is 740235731.

It is a strong prime.

It is an emirp because it is prime and its reverse (740235731) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137532047 is a prime.

Together with 137532049, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137532049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68766023 + 68766024.

It is an arithmetic number, because the mean of its divisors is an integer number (68766024).

Almost surely, 2^137532047 is an apocalyptic number.

137532047 is a deficient number, since it is larger than the sum of its proper divisors (1).

137532047 is an equidigital number, since it uses as much as digits as its factorization.

137532047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 137532047 is about 11727.4058086177. The cubic root of 137532047 is about 516.1801533780.

Adding to 137532047 its reverse (740235731), we get a palindrome (877767778).

The spelling of 137532047 in words is "one hundred thirty-seven million, five hundred thirty-two thousand, forty-seven".