201489194 has 8 divisors (see below), whose sum is σ = 302705760. Its totient is φ = 100587276.

The previous prime is 201489179. The next prime is 201489227. The reversal of 201489194 is 491984102.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77054 + ... + 79625.

It is an arithmetic number, because the mean of its divisors is an integer number (37838220).

Almost surely, 2^201489194 is an apocalyptic number.

201489194 is a deficient number, since it is larger than the sum of its proper divisors (101216566).

201489194 is a wasteful number, since it uses less digits than its factorization.

201489194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157324.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 201489194 is about 14194.6889363593. The cubic root of 201489194 is about 586.2514364784.

The spelling of 201489194 in words is "two hundred one million, four hundred eighty-nine thousand, one hundred ninety-four".