201745047 has 8 divisors (see below), whose sum is σ = 307421056. Its totient is φ = 115282872.

The previous prime is 201745031. The next prime is 201745057. The reversal of 201745047 is 740547102.

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

It is not a de Polignac number, because 201745047 - 2⁴ = 201745031 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 (201745057) 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, 4803433 + ... + 4803474.

It is an arithmetic number, because the mean of its divisors is an integer number (38427632).

Almost surely, 2^201745047 is an apocalyptic number.

201745047 is a deficient number, since it is larger than the sum of its proper divisors (105676009).

201745047 is an equidigital number, since it uses as much as digits as its factorization.

201745047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9606917.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 201745047 is about 14203.6983564141. The cubic root of 201745047 is about 586.4994741730.

The spelling of 201745047 in words is "two hundred one million, seven hundred forty-five thousand, forty-seven".