231514002 has 12 divisors (see below), whose sum is σ = 501613710. Its totient is φ = 77171328.

The previous prime is 231513979. The next prime is 231514039. The reversal of 231514002 is 200415132.

It can be written as a sum of positive squares in only one way, i.e., 229795281 + 1718721 = 15159^2 + 1311^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 12861889 = 231514002 / (2 + 3 + 1 + 5 + 1 + 4 + 0 + 0 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6430927 + ... + 6430962.

Almost surely, 2^231514002 is an apocalyptic number.

231514002 is an abundant number, since it is smaller than the sum of its proper divisors (270099708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231514002 is a wasteful number, since it uses less digits than its factorization.

231514002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12861897 (or 12861894 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 231514002 is about 15215.5841820155. The cubic root of 231514002 is about 614.0340020145.

Adding to 231514002 its reverse (200415132), we get a palindrome (431929134).

The spelling of 231514002 in words is "two hundred thirty-one million, five hundred fourteen thousand, two".