245512342 has 4 divisors (see below), whose sum is σ = 368268516. Its totient is φ = 122756170.

The previous prime is 245512339. The next prime is 245512369. The reversal of 245512342 is 243215542.

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

It is a self number, because there is not a number n which added to its sum of digits gives 245512342.

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, 61378084 + ... + 61378087.

It is an arithmetic number, because the mean of its divisors is an integer number (92067129).

Almost surely, 2^245512342 is an apocalyptic number.

245512342 is a deficient number, since it is larger than the sum of its proper divisors (122756174).

245512342 is a wasteful number, since it uses less digits than its factorization.

245512342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122756173.

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

The square root of 245512342 is about 15668.8334600889. The cubic root of 245512342 is about 626.1683464257.

Adding to 245512342 its reverse (243215542), we get a palindrome (488727884).

The spelling of 245512342 in words is "two hundred forty-five million, five hundred twelve thousand, three hundred forty-two".