126540151 has 2 divisors, whose sum is σ = 126540152. Its totient is φ = 126540150.

The previous prime is 126540107. The next prime is 126540217. The reversal of 126540151 is 151045621.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126540151 - 2¹¹ = 126538103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126540251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63270075 + 63270076.

It is an arithmetic number, because the mean of its divisors is an integer number (63270076).

Almost surely, 2^126540151 is an apocalyptic number.

126540151 is a deficient number, since it is larger than the sum of its proper divisors (1).

126540151 is an equidigital number, since it uses as much as digits as its factorization.

126540151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 126540151 is about 11249.0066672573. The cubic root of 126540151 is about 502.0451579192.

Adding to 126540151 its reverse (151045621), we get a palindrome (277585772).

The spelling of 126540151 in words is "one hundred twenty-six million, five hundred forty thousand, one hundred fifty-one".