231245134 has 4 divisors (see below), whose sum is σ = 346867704. Its totient is φ = 115622566.

The previous prime is 231245111. The next prime is 231245171. The reversal of 231245134 is 431542132.

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

It is a super-3 number, since 3×231245134³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231245099 and 231245108.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 57811282 + ... + 57811285.

It is an arithmetic number, because the mean of its divisors is an integer number (86716926).

Almost surely, 2^231245134 is an apocalyptic number.

231245134 is a deficient number, since it is larger than the sum of its proper divisors (115622570).

231245134 is a wasteful number, since it uses less digits than its factorization.

231245134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115622569.

The product of its digits is 2880, while the sum is 25.

The square root of 231245134 is about 15206.7463318094. The cubic root of 231245134 is about 613.7962078359.

Adding to 231245134 its reverse (431542132), we get a palindrome (662787266).

The spelling of 231245134 in words is "two hundred thirty-one million, two hundred forty-five thousand, one hundred thirty-four".