113143522 has 4 divisors (see below), whose sum is σ = 169715286. Its totient is φ = 56571760.

The previous prime is 113143519. The next prime is 113143549. The reversal of 113143522 is 225341311.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 74839801 + 38303721 = 8651^2 + 6189^2 .

It is a junction number, because it is equal to n+sod(n) for n = 113143493 and 113143502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28285879 + ... + 28285882.

Almost surely, 2^113143522 is an apocalyptic number.

113143522 is a deficient number, since it is larger than the sum of its proper divisors (56571764).

113143522 is an equidigital number, since it uses as much as digits as its factorization.

113143522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56571763.

The product of its digits is 720, while the sum is 22.

The square root of 113143522 is about 10636.8943775897. The cubic root of 113143522 is about 483.6634074609.

Adding to 113143522 its reverse (225341311), we get a palindrome (338484833).

The spelling of 113143522 in words is "one hundred thirteen million, one hundred forty-three thousand, five hundred twenty-two".