201872126 has 8 divisors (see below), whose sum is σ = 303934680. Its totient is φ = 100560568.

The previous prime is 201872113. The next prime is 201872137. The reversal of 201872126 is 621278102.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 187076 + ... + 188151.

It is an arithmetic number, because the mean of its divisors is an integer number (37991835).

Almost surely, 2^201872126 is an apocalyptic number.

201872126 is a deficient number, since it is larger than the sum of its proper divisors (102062554).

201872126 is a wasteful number, since it uses less digits than its factorization.

201872126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375498.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 201872126 is about 14208.1710997581. The cubic root of 201872126 is about 586.6225934665.

The spelling of 201872126 in words is "two hundred one million, eight hundred seventy-two thousand, one hundred twenty-six".