231989098 has 16 divisors (see below), whose sum is σ = 381953376. Its totient is φ = 104801040.

The previous prime is 231989081. The next prime is 231989099. The reversal of 231989098 is 890989132.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (231989099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28761 + ... + 35932.

It is an arithmetic number, because the mean of its divisors is an integer number (23872086).

Almost surely, 2^231989098 is an apocalyptic number.

231989098 is a deficient number, since it is larger than the sum of its proper divisors (149964278).

231989098 is a wasteful number, since it uses less digits than its factorization.

231989098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64869.

The product of its (nonzero) digits is 279936, while the sum is 49.

The square root of 231989098 is about 15231.1883318407. The cubic root of 231989098 is about 614.4537401594.

The spelling of 231989098 in words is "two hundred thirty-one million, nine hundred eighty-nine thousand, ninety-eight".