126695901 has 4 divisors (see below), whose sum is σ = 168927872. Its totient is φ = 84463932.

The previous prime is 126695897. The next prime is 126695909. The reversal of 126695901 is 109596621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 126695901 - 2² = 126695897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126695901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126695909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21115981 + ... + 21115986.

It is an arithmetic number, because the mean of its divisors is an integer number (42231968).

Almost surely, 2^126695901 is an apocalyptic number.

It is an amenable number.

126695901 is a deficient number, since it is larger than the sum of its proper divisors (42231971).

126695901 is an equidigital number, since it uses as much as digits as its factorization.

126695901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42231970.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 126695901 is about 11255.9273718339. The cubic root of 126695901 is about 502.2510516574.

The spelling of 126695901 in words is "one hundred twenty-six million, six hundred ninety-five thousand, nine hundred one".