126752417501 has 2 divisors, whose sum is σ = 126752417502. Its totient is φ = 126752417500.

The previous prime is 126752417497. The next prime is 126752417557. The reversal of 126752417501 is 105714257621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118773283225 + 7979134276 = 344635^2 + 89326^2 .

It is a cyclic number.

It is not a de Polignac number, because 126752417501 - 2² = 126752417497 is a prime.

It is a super-2 number, since 2×126752417501² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126752417581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63376208750 + 63376208751.

It is an arithmetic number, because the mean of its divisors is an integer number (63376208751).

Almost surely, 2^126752417501 is an apocalyptic number.

It is an amenable number.

126752417501 is a deficient number, since it is larger than the sum of its proper divisors (1).

126752417501 is an equidigital number, since it uses as much as digits as its factorization.

126752417501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 117600, while the sum is 41.

The spelling of 126752417501 in words is "one hundred twenty-six billion, seven hundred fifty-two million, four hundred seventeen thousand, five hundred one".