201690047 has 8 divisors (see below), whose sum is σ = 218237040. Its totient is φ = 185290560.

The previous prime is 201690037. The next prime is 201690103. The reversal of 201690047 is 740096102.

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

It is not a de Polignac number, because 201690047 - 2¹⁸ = 201427903 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 (201690007) 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, 34022 + ... + 39507.

It is an arithmetic number, because the mean of its divisors is an integer number (27279630).

Almost surely, 2^201690047 is an apocalyptic number.

201690047 is a deficient number, since it is larger than the sum of its proper divisors (16546993).

201690047 is a wasteful number, since it uses less digits than its factorization.

201690047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73753.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 201690047 is about 14201.7621089779. The cubic root of 201690047 is about 586.4461719096.

The spelling of 201690047 in words is "two hundred one million, six hundred ninety thousand, forty-seven".