137457227 has 2 divisors, whose sum is σ = 137457228. Its totient is φ = 137457226.

The previous prime is 137457209. The next prime is 137457241. The reversal of 137457227 is 722754731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137457227 - 2¹² = 137453131 is a prime.

It is not a weakly prime, because it can be changed into another prime (137457277) 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 as a sum of consecutive naturals, namely, 68728613 + 68728614.

It is an arithmetic number, because the mean of its divisors is an integer number (68728614).

Almost surely, 2^137457227 is an apocalyptic number.

137457227 is a deficient number, since it is larger than the sum of its proper divisors (1).

137457227 is an equidigital number, since it uses as much as digits as its factorization.

137457227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82320, while the sum is 38.

The square root of 137457227 is about 11724.2154108495. The cubic root of 137457227 is about 516.0865325202.

The spelling of 137457227 in words is "one hundred thirty-seven million, four hundred fifty-seven thousand, two hundred twenty-seven".