231132545 has 8 divisors (see below), whose sum is σ = 316981824. Its totient is φ = 158490864.

The previous prime is 231132479. The next prime is 231132557. The reversal of 231132545 is 545231132.

It is a happy number.

231132545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231132545 - 2¹⁰ = 231131521 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3301859 + ... + 3301928.

It is an arithmetic number, because the mean of its divisors is an integer number (39622728).

Almost surely, 2^231132545 is an apocalyptic number.

It is an amenable number.

231132545 is a deficient number, since it is larger than the sum of its proper divisors (85849279).

231132545 is an equidigital number, since it uses as much as digits as its factorization.

231132545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6603799.

The product of its digits is 3600, while the sum is 26.

The square root of 231132545 is about 15203.0439386328. The cubic root of 231132545 is about 613.6965763054.

Adding to 231132545 its reverse (545231132), we get a palindrome (776363677).

The spelling of 231132545 in words is "two hundred thirty-one million, one hundred thirty-two thousand, five hundred forty-five".