145645522 has 48 divisors (see below), whose sum is σ = 253725696. Its totient is φ = 62532800.

The previous prime is 145645517. The next prime is 145645547. The reversal of 145645522 is 225546541.

Its product of digits (48000) is a multiple of the sum of its prime factors (375).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 762447 + ... + 762637.

It is an arithmetic number, because the mean of its divisors is an integer number (5285952).

Almost surely, 2^145645522 is an apocalyptic number.

145645522 is a deficient number, since it is larger than the sum of its proper divisors (108080174).

145645522 is a wasteful number, since it uses less digits than its factorization.

145645522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 364 counting only the distinct ones).

The product of its digits is 48000, while the sum is 34.

The square root of 145645522 is about 12068.3686552906. The cubic root of 145645522 is about 526.1372438934.

It can be divided in two parts, 14564 and 5522, that multiplied together give a palindrome (80422408).

The spelling of 145645522 in words is "one hundred forty-five million, six hundred forty-five thousand, five hundred twenty-two".