2445556142 has 4 divisors (see below), whose sum is σ = 3668334216. Its totient is φ = 1222778070.

The previous prime is 2445556129. The next prime is 2445556171. The reversal of 2445556142 is 2416555442.

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

It is a junction number, because it is equal to n+sod(n) for n = 2445556096 and 2445556105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611389034 + ... + 611389037.

It is an arithmetic number, because the mean of its divisors is an integer number (917083554).

Almost surely, 2^2445556142 is an apocalyptic number.

2445556142 is a deficient number, since it is larger than the sum of its proper divisors (1222778074).

2445556142 is a wasteful number, since it uses less digits than its factorization.

2445556142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222778073.

The product of its digits is 192000, while the sum is 38.

The square root of 2445556142 is about 49452.5645644389. The cubic root of 2445556142 is about 1347.2841866815.

The spelling of 2445556142 in words is "two billion, four hundred forty-five million, five hundred fifty-six thousand, one hundred forty-two".