2231987529 has 8 divisors (see below), whose sum is σ = 2980501920. Its totient is φ = 1485732416.

The previous prime is 2231987509. The next prime is 2231987539. The reversal of 2231987529 is 9257891322.

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 2231987529 - 2⁵ = 2231987497 is a prime.

It is a super-3 number, since 3×2231987529³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2231987509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 562512 + ... + 566465.

It is an arithmetic number, because the mean of its divisors is an integer number (372562740).

Almost surely, 2^2231987529 is an apocalyptic number.

It is an amenable number.

2231987529 is a deficient number, since it is larger than the sum of its proper divisors (748514391).

2231987529 is a wasteful number, since it uses less digits than its factorization.

2231987529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129639.

The product of its digits is 544320, while the sum is 48.

The square root of 2231987529 is about 47243.9152590045. The cubic root of 2231987529 is about 1306.8645814317.

The spelling of 2231987529 in words is "two billion, two hundred thirty-one million, nine hundred eighty-seven thousand, five hundred twenty-nine".