245650143242 has 32 divisors (see below), whose sum is σ = 446110115328. Its totient is φ = 99035963136.

The previous prime is 245650143229. The next prime is 245650143311. The reversal of 245650143242 is 242341056542.

It is a junction number, because it is equal to n+sod(n) for n = 245650143196 and 245650143205.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216863 + ... + 733709.

It is an arithmetic number, because the mean of its divisors is an integer number (13940941104).

Almost surely, 2^245650143242 is an apocalyptic number.

245650143242 is a deficient number, since it is larger than the sum of its proper divisors (200459972086).

245650143242 is a wasteful number, since it uses less digits than its factorization.

245650143242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518870.

The product of its (nonzero) digits is 230400, while the sum is 38.

Adding to 245650143242 its reverse (242341056542), we get a palindrome (487991199784).

The spelling of 245650143242 in words is "two hundred forty-five billion, six hundred fifty million, one hundred forty-three thousand, two hundred forty-two".