201169426 has 4 divisors (see below), whose sum is σ = 301754142. Its totient is φ = 100584712.

The previous prime is 201169421. The next prime is 201169427. The reversal of 201169426 is 624961102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 112338801 + 88830625 = 10599^2 + 9425^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (201169421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50292355 + ... + 50292358.

Almost surely, 2^201169426 is an apocalyptic number.

201169426 is a deficient number, since it is larger than the sum of its proper divisors (100584716).

201169426 is a wasteful number, since it uses less digits than its factorization.

201169426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100584715.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 201169426 is about 14183.4208144580. The cubic root of 201169426 is about 585.9411407527.

The spelling of 201169426 in words is "two hundred one million, one hundred sixty-nine thousand, four hundred twenty-six".