137449271 has 2 divisors, whose sum is σ = 137449272. Its totient is φ = 137449270.

The previous prime is 137449243. The next prime is 137449297. The reversal of 137449271 is 172944731.

It is a happy number.

137449271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137449271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137449201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68724635 + 68724636.

It is an arithmetic number, because the mean of its divisors is an integer number (68724636).

Almost surely, 2^137449271 is an apocalyptic number.

137449271 is a deficient number, since it is larger than the sum of its proper divisors (1).

137449271 is an equidigital number, since it uses as much as digits as its factorization.

137449271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 38.

The square root of 137449271 is about 11723.8761081820. The cubic root of 137449271 is about 516.0765753290.

The spelling of 137449271 in words is "one hundred thirty-seven million, four hundred forty-nine thousand, two hundred seventy-one".