126956471 has 2 divisors, whose sum is σ = 126956472. Its totient is φ = 126956470.

The previous prime is 126956443. The next prime is 126956503. The reversal of 126956471 is 174659621.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126956471 is a prime.

It is a super-3 number, since 3×126956471³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126956411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63478235 + 63478236.

It is an arithmetic number, because the mean of its divisors is an integer number (63478236).

Almost surely, 2^126956471 is an apocalyptic number.

126956471 is a deficient number, since it is larger than the sum of its proper divisors (1).

126956471 is an equidigital number, since it uses as much as digits as its factorization.

126956471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 41.

The square root of 126956471 is about 11267.4962169951. The cubic root of 126956471 is about 502.5951352428.

The spelling of 126956471 in words is "one hundred twenty-six million, nine hundred fifty-six thousand, four hundred seventy-one".