126724159 has 2 divisors, whose sum is σ = 126724160. Its totient is φ = 126724158.

The previous prime is 126724133. The next prime is 126724193. The reversal of 126724159 is 951427621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126724159 - 2¹⁵ = 126691391 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126724259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63362079 + 63362080.

It is an arithmetic number, because the mean of its divisors is an integer number (63362080).

Almost surely, 2^126724159 is an apocalyptic number.

126724159 is a deficient number, since it is larger than the sum of its proper divisors (1).

126724159 is an equidigital number, since it uses as much as digits as its factorization.

126724159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 37.

The square root of 126724159 is about 11257.1825515979. The cubic root of 126724159 is about 502.2883892378.

The spelling of 126724159 in words is "one hundred twenty-six million, seven hundred twenty-four thousand, one hundred fifty-nine".