201049047 has 20 divisors (see below), whose sum is σ = 300764376. Its totient is φ = 133840080.

The previous prime is 201048997. The next prime is 201049061. The reversal of 201049047 is 740940102.

It is a happy number.

It is not a de Polignac number, because 201049047 - 2⁶ = 201048983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 201049047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201049747) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 75397 + ... + 78017.

Almost surely, 2^201049047 is an apocalyptic number.

201049047 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

201049047 is a deficient number, since it is larger than the sum of its proper divisors (99715329).

201049047 is an equidigital number, since it uses as much as digits as its factorization.

201049047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3580 (or 3571 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 201049047 is about 14179.1765275703. The cubic root of 201049047 is about 585.8242424679.

Adding to 201049047 its reverse (740940102), we get a palindrome (941989149).

The spelling of 201049047 in words is "two hundred one million, forty-nine thousand, forty-seven".