201109494 has 16 divisors (see below), whose sum is σ = 402358320. Its totient is φ = 67013280.

The previous prime is 201109477. The next prime is 201109529. The reversal of 201109494 is 494901102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29172 + ... + 35400.

It is an arithmetic number, because the mean of its divisors is an integer number (25147395).

Almost surely, 2^201109494 is an apocalyptic number.

201109494 is an abundant number, since it is smaller than the sum of its proper divisors (201248826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201109494 is a wasteful number, since it uses less digits than its factorization.

201109494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11615.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 201109494 is about 14181.3079086521. The cubic root of 201109494 is about 585.8829474957.

The spelling of 201109494 in words is "two hundred one million, one hundred nine thousand, four hundred ninety-four".