245043762142 has 4 divisors (see below), whose sum is σ = 367565643216. Its totient is φ = 122521881070.

The previous prime is 245043762113. The next prime is 245043762143. The reversal of 245043762142 is 241267340542.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 245043762095 and 245043762104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245043762143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61260940534 + ... + 61260940537.

It is an arithmetic number, because the mean of its divisors is an integer number (91891410804).

Almost surely, 2^245043762142 is an apocalyptic number.

245043762142 is a deficient number, since it is larger than the sum of its proper divisors (122521881074).

245043762142 is a wasteful number, since it uses less digits than its factorization.

245043762142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122521881073.

The product of its (nonzero) digits is 322560, while the sum is 40.

The spelling of 245043762142 in words is "two hundred forty-five billion, forty-three million, seven hundred sixty-two thousand, one hundred forty-two".