573231491 has 16 divisors (see below), whose sum is σ = 679793856. Its totient is φ = 473112576.

The previous prime is 573231481. The next prime is 573231511. The reversal of 573231491 is 194132375.

It is a cyclic number.

It is not a de Polignac number, because 573231491 - 2¹⁴ = 573215107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (573231401) 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, 13715 + ... + 36531.

It is an arithmetic number, because the mean of its divisors is an integer number (42487116).

Almost surely, 2^573231491 is an apocalyptic number.

573231491 is a deficient number, since it is larger than the sum of its proper divisors (106562365).

573231491 is a wasteful number, since it uses less digits than its factorization.

573231491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22958.

The product of its digits is 22680, while the sum is 35.

The square root of 573231491 is about 23942.2532565337. The cubic root of 573231491 is about 830.6983482415.

The spelling of 573231491 in words is "five hundred seventy-three million, two hundred thirty-one thousand, four hundred ninety-one".