126173351 has 2 divisors, whose sum is σ = 126173352. Its totient is φ = 126173350.

The previous prime is 126173347. The next prime is 126173353. The reversal of 126173351 is 153371621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126173351 - 2² = 126173347 is a prime.

Together with 126173353, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_7173146 and since 126173351 and 7173146 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126173353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63086675 + 63086676.

It is an arithmetic number, because the mean of its divisors is an integer number (63086676).

Almost surely, 2^126173351 is an apocalyptic number.

126173351 is a deficient number, since it is larger than the sum of its proper divisors (1).

126173351 is an equidigital number, since it uses as much as digits as its factorization.

126173351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 29.

The square root of 126173351 is about 11232.6911735345. The cubic root of 126173351 is about 501.5595982486.

The spelling of 126173351 in words is "one hundred twenty-six million, one hundred seventy-three thousand, three hundred fifty-one".