201445901 has 8 divisors (see below), whose sum is σ = 205939200. Its totient is φ = 196961328.

The previous prime is 201445877. The next prime is 201445913. The reversal of 201445901 is 109544102.

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

It is a cyclic number.

It is not a de Polignac number, because 201445901 - 2¹⁰ = 201444877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201445931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71420 + ... + 74186.

It is an arithmetic number, because the mean of its divisors is an integer number (25742400).

Almost surely, 2^201445901 is an apocalyptic number.

It is an amenable number.

201445901 is a deficient number, since it is larger than the sum of its proper divisors (4493299).

201445901 is a wasteful number, since it uses less digits than its factorization.

201445901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4363.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 201445901 is about 14193.1638826584. The cubic root of 201445901 is about 586.2094451422.

The spelling of 201445901 in words is "two hundred one million, four hundred forty-five thousand, nine hundred one".