231245355 has 16 divisors (see below), whose sum is σ = 403628544. Its totient is φ = 112118880.

The previous prime is 231245351. The next prime is 231245383. The reversal of 231245355 is 553542132.

It is not a de Polignac number, because 231245355 - 2² = 231245351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231245351) 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 15 ways as a sum of consecutive naturals, for example, 700579 + ... + 700908.

It is an arithmetic number, because the mean of its divisors is an integer number (25226784).

Almost surely, 2^231245355 is an apocalyptic number.

231245355 is a deficient number, since it is larger than the sum of its proper divisors (172383189).

231245355 is a wasteful number, since it uses less digits than its factorization.

231245355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401506.

The product of its digits is 18000, while the sum is 30.

The square root of 231245355 is about 15206.7535983194. The cubic root of 231245355 is about 613.7964033700.

Adding to 231245355 its reverse (553542132), we get a palindrome (784787487).

The spelling of 231245355 in words is "two hundred thirty-one million, two hundred forty-five thousand, three hundred fifty-five".