2231523142 has 8 divisors (see below), whose sum is σ = 3349008000. Its totient is φ = 1115187144.

The previous prime is 2231523131. The next prime is 2231523157. The reversal of 2231523142 is 2413251322.

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

It is a super-3 number, since 3×2231523142³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282342 + ... + 290137.

It is an arithmetic number, because the mean of its divisors is an integer number (418626000).

Almost surely, 2^2231523142 is an apocalyptic number.

2231523142 is a deficient number, since it is larger than the sum of its proper divisors (1117484858).

2231523142 is a wasteful number, since it uses less digits than its factorization.

2231523142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574430.

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

The square root of 2231523142 is about 47239.0002222740. Note that the first 3 decimals coincide. The cubic root of 2231523142 is about 1306.7739397937.

Adding to 2231523142 its reverse (2413251322), we get a palindrome (4644774464).

The spelling of 2231523142 in words is "two billion, two hundred thirty-one million, five hundred twenty-three thousand, one hundred forty-two".