145144522 has 16 divisors (see below), whose sum is σ = 224275392. Its totient is φ = 70408800.

The previous prime is 145144501. The next prime is 145144523. The reversal of 145144522 is 225441541.

145144522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (145144523) 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, 7398 + ... + 18574.

It is an arithmetic number, because the mean of its divisors is an integer number (14017212).

Almost surely, 2^145144522 is an apocalyptic number.

145144522 is a deficient number, since it is larger than the sum of its proper divisors (79130870).

145144522 is a wasteful number, since it uses less digits than its factorization.

145144522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11373.

The product of its digits is 6400, while the sum is 28.

The square root of 145144522 is about 12047.5940336650. The cubic root of 145144522 is about 525.5332715974.

The spelling of 145144522 in words is "one hundred forty-five million, one hundred forty-four thousand, five hundred twenty-two".