245523142 has 8 divisors (see below), whose sum is σ = 368537832. Its totient is φ = 122677200.

The previous prime is 245523127. The next prime is 245523169. The reversal of 245523142 is 241325542.

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

It is a super-2 number, since 2×245523142² = 120563226515104328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 245523142.

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 in 3 ways as a sum of consecutive naturals, for example, 38484 + ... + 44407.

It is an arithmetic number, because the mean of its divisors is an integer number (46067229).

Almost surely, 2^245523142 is an apocalyptic number.

245523142 is a deficient number, since it is larger than the sum of its proper divisors (123014690).

245523142 is a wasteful number, since it uses less digits than its factorization.

245523142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84374.

The product of its digits is 9600, while the sum is 28.

The square root of 245523142 is about 15669.1780894851. The cubic root of 245523142 is about 626.1775279315.

Adding to 245523142 its reverse (241325542), we get a palindrome (486848684).

The spelling of 245523142 in words is "two hundred forty-five million, five hundred twenty-three thousand, one hundred forty-two".