126720151 has 2 divisors, whose sum is σ = 126720152. Its totient is φ = 126720150.

The previous prime is 126720149. The next prime is 126720173. The reversal of 126720151 is 151027621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126720151 - 2¹ = 126720149 is a prime.

Together with 126720149, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126721151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63360075 + 63360076.

It is an arithmetic number, because the mean of its divisors is an integer number (63360076).

Almost surely, 2^126720151 is an apocalyptic number.

126720151 is a deficient number, since it is larger than the sum of its proper divisors (1).

126720151 is an equidigital number, since it uses as much as digits as its factorization.

126720151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 126720151 is about 11257.0045305134. The cubic root of 126720151 is about 502.2830937648.

Adding to 126720151 its reverse (151027621), we get a palindrome (277747772).

The spelling of 126720151 in words is "one hundred twenty-six million, seven hundred twenty thousand, one hundred fifty-one".