201580049 has 16 divisors (see below), whose sum is σ = 225434880. Its totient is φ = 178698000.

The previous prime is 201580037. The next prime is 201580061. The reversal of 201580049 is 940085102.

It is an interprime number because it is at equal distance from previous prime (201580037) and next prime (201580061).

It is a cyclic number.

It is not a de Polignac number, because 201580049 - 2²⁴ = 184802833 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (201580069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83834 + ... + 86204.

It is an arithmetic number, because the mean of its divisors is an integer number (14089680).

Almost surely, 2^201580049 is an apocalyptic number.

It is an amenable number.

201580049 is a deficient number, since it is larger than the sum of its proper divisors (23854831).

201580049 is a wasteful number, since it uses less digits than its factorization.

201580049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2572.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 201580049 is about 14197.8888923671. Note that the first 4 decimals coincide. The cubic root of 201580049 is about 586.3395402444.

The spelling of 201580049 in words is "two hundred one million, five hundred eighty thousand, forty-nine".