291002201 has 8 divisors (see below), whose sum is σ = 332754240. Its totient is φ = 249295248.

The previous prime is 291002197. The next prime is 291002227. The reversal of 291002201 is 102200192.

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

It is a cyclic number.

It is not a de Polignac number, because 291002201 - 2² = 291002197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 291002201.

It is not an unprimeable number, because it can be changed into a prime (291002281) 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, 3935 + ... + 24443.

It is an arithmetic number, because the mean of its divisors is an integer number (41594280).

Almost surely, 2^291002201 is an apocalyptic number.

It is an amenable number.

291002201 is a deficient number, since it is larger than the sum of its proper divisors (41752039).

291002201 is a wasteful number, since it uses less digits than its factorization.

291002201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22543.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 291002201 is about 17058.7866215625. The cubic root of 291002201 is about 662.6722094626.

Adding to 291002201 its reverse (102200192), we get a palindrome (393202393).

The spelling of 291002201 in words is "two hundred ninety-one million, two thousand, two hundred one".