145530222442 has 32 divisors (see below), whose sum is σ = 241080053760. Its totient is φ = 65333988720.

The previous prime is 145530222427. The next prime is 145530222469. The reversal of 145530222442 is 244222035541.

It is a junction number, because it is equal to n+sod(n) for n = 145530222398 and 145530222407.

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, 7584753 + ... + 7603915.

It is an arithmetic number, because the mean of its divisors is an integer number (7533751680).

Almost surely, 2^145530222442 is an apocalyptic number.

145530222442 is a deficient number, since it is larger than the sum of its proper divisors (95549831318).

145530222442 is a wasteful number, since it uses less digits than its factorization.

145530222442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23418.

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 145530222442 its reverse (244222035541), we get a palindrome (389752257983).

The spelling of 145530222442 in words is "one hundred forty-five billion, five hundred thirty million, two hundred twenty-two thousand, four hundred forty-two".