126109401 has 8 divisors (see below), whose sum is σ = 183431904. Its totient is φ = 76429920.

The previous prime is 126109381. The next prime is 126109427. The reversal of 126109401 is 104901621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 126109401 - 2⁶ = 126109337 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126108401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1910716 + ... + 1910781.

It is an arithmetic number, because the mean of its divisors is an integer number (22928988).

Almost surely, 2^126109401 is an apocalyptic number.

126109401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

126109401 is a deficient number, since it is larger than the sum of its proper divisors (57322503).

126109401 is a wasteful number, since it uses less digits than its factorization.

126109401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3821511.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 126109401 is about 11229.8442108517. The cubic root of 126109401 is about 501.4748467103.

The spelling of 126109401 in words is "one hundred twenty-six million, one hundred nine thousand, four hundred one".