126651247 has 2 divisors, whose sum is σ = 126651248. Its totient is φ = 126651246.

The previous prime is 126651227. The next prime is 126651253. The reversal of 126651247 is 742156621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126651247 - 2¹¹ = 126649199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126651227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63325623 + 63325624.

It is an arithmetic number, because the mean of its divisors is an integer number (63325624).

Almost surely, 2^126651247 is an apocalyptic number.

126651247 is a deficient number, since it is larger than the sum of its proper divisors (1).

126651247 is an equidigital number, since it uses as much as digits as its factorization.

126651247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 34.

The square root of 126651247 is about 11253.9436199050. The cubic root of 126651247 is about 502.1920385568.

The spelling of 126651247 in words is "one hundred twenty-six million, six hundred fifty-one thousand, two hundred forty-seven".