126195659 has 2 divisors, whose sum is σ = 126195660. Its totient is φ = 126195658.

The previous prime is 126195577. The next prime is 126195661. The reversal of 126195659 is 956591621.

It is a strong prime.

It is an emirp because it is prime and its reverse (956591621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126195659 is a prime.

Together with 126195661, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (126195679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63097829 + 63097830.

It is an arithmetic number, because the mean of its divisors is an integer number (63097830).

Almost surely, 2^126195659 is an apocalyptic number.

126195659 is a deficient number, since it is larger than the sum of its proper divisors (1).

126195659 is an equidigital number, since it uses as much as digits as its factorization.

126195659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145800, while the sum is 44.

The square root of 126195659 is about 11233.6841240975. The cubic root of 126195659 is about 501.5891558165.

The spelling of 126195659 in words is "one hundred twenty-six million, one hundred ninety-five thousand, six hundred fifty-nine".