145225422442 has 16 divisors (see below), whose sum is σ = 221992876800. Its totient is φ = 71232936640.

The previous prime is 145225422431. The next prime is 145225422443. The reversal of 145225422442 is 244224522541.

It is not an unprimeable number, because it can be changed into a prime (145225422443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1228159 + ... + 1341202.

It is an arithmetic number, because the mean of its divisors is an integer number (13874554800).

Almost surely, 2^145225422442 is an apocalyptic number.

145225422442 is a deficient number, since it is larger than the sum of its proper divisors (76767454358).

145225422442 is a wasteful number, since it uses less digits than its factorization.

145225422442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569901.

The product of its digits is 204800, while the sum is 37.

Adding to 145225422442 its reverse (244224522541), we get a palindrome (389449944983).

The spelling of 145225422442 in words is "one hundred forty-five billion, two hundred twenty-five million, four hundred twenty-two thousand, four hundred forty-two".