145522244 has 24 divisors (see below), whose sum is σ = 308165760. Its totient is φ = 58697856.

The previous prime is 145522231. The next prime is 145522283. The reversal of 145522244 is 442225541.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 152384 + ... + 153335.

It is an arithmetic number, because the mean of its divisors is an integer number (12840240).

Almost surely, 2^145522244 is an apocalyptic number.

145522244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

145522244 is an abundant number, since it is smaller than the sum of its proper divisors (162643516).

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

145522244 is a wasteful number, since it uses less digits than its factorization.

145522244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305747 (or 305745 counting only the distinct ones).

The product of its digits is 12800, while the sum is 29.

The square root of 145522244 is about 12063.2600900420. The cubic root of 145522244 is about 525.9887567655.

Adding to 145522244 its reverse (442225541), we get a palindrome (587747785).

The spelling of 145522244 in words is "one hundred forty-five million, five hundred twenty-two thousand, two hundred forty-four".