145442022 has 32 divisors (see below), whose sum is σ = 318746880. Its totient is φ = 43876320.

The previous prime is 145441999. The next prime is 145442027. The reversal of 145442022 is 220244541.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 145441983 and 145442001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145442027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10303 + ... + 19925.

It is an arithmetic number, because the mean of its divisors is an integer number (9960840).

Almost surely, 2^145442022 is an apocalyptic number.

145442022 is an abundant number, since it is smaller than the sum of its proper divisors (173304858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145442022 is a wasteful number, since it uses less digits than its factorization.

145442022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9868.

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 145442022 is about 12059.9345769370. The cubic root of 145442022 is about 525.8920851158.

Adding to 145442022 its reverse (220244541), we get a palindrome (365686563).

The spelling of 145442022 in words is "one hundred forty-five million, four hundred forty-two thousand, twenty-two".