201032491 has 16 divisors (see below), whose sum is σ = 222732288. Its totient is φ = 179928000.

The previous prime is 201032449. The next prime is 201032527. The reversal of 201032491 is 194230102.

It is a cyclic number.

It is not a de Polignac number, because 201032491 - 2¹⁵ = 200999723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201032431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210471 + ... + 211423.

It is an arithmetic number, because the mean of its divisors is an integer number (13920768).

Almost surely, 2^201032491 is an apocalyptic number.

201032491 is a deficient number, since it is larger than the sum of its proper divisors (21699797).

201032491 is a wasteful number, since it uses less digits than its factorization.

201032491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 201032491 is about 14178.5927016753. The cubic root of 201032491 is about 585.8081615289.

Adding to 201032491 its reverse (194230102), we get a palindrome (395262593).

The spelling of 201032491 in words is "two hundred one million, thirty-two thousand, four hundred ninety-one".