231049087 has 4 divisors (see below), whose sum is σ = 231430336. Its totient is φ = 230667840.

The previous prime is 231049037. The next prime is 231049103. The reversal of 231049087 is 780940132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231049087 - 2¹¹ = 231047039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231049037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189714 + ... + 190927.

It is an arithmetic number, because the mean of its divisors is an integer number (57857584).

Almost surely, 2^231049087 is an apocalyptic number.

231049087 is a deficient number, since it is larger than the sum of its proper divisors (381249).

231049087 is an equidigital number, since it uses as much as digits as its factorization.

231049087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381248.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 231049087 is about 15200.2989115346. The cubic root of 231049087 is about 613.6227023085.

The spelling of 231049087 in words is "two hundred thirty-one million, forty-nine thousand, eighty-seven".