126545137 has 2 divisors, whose sum is σ = 126545138. Its totient is φ = 126545136.

The previous prime is 126545077. The next prime is 126545179. The reversal of 126545137 is 731545621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105760656 + 20784481 = 10284^2 + 4559^2 .

It is an emirp because it is prime and its reverse (731545621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126545137 - 2¹¹ = 126543089 is a prime.

It is equal to p_7193059 and since 126545137 and 7193059 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (126545437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63272568 + 63272569.

It is an arithmetic number, because the mean of its divisors is an integer number (63272569).

Almost surely, 2^126545137 is an apocalyptic number.

It is an amenable number.

126545137 is a deficient number, since it is larger than the sum of its proper divisors (1).

126545137 is an equidigital number, since it uses as much as digits as its factorization.

126545137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 34.

The square root of 126545137 is about 11249.2282846425. The cubic root of 126545137 is about 502.0517517796.

The spelling of 126545137 in words is "one hundred twenty-six million, five hundred forty-five thousand, one hundred thirty-seven".