145552122 has 24 divisors (see below), whose sum is σ = 331961760. Its totient is φ = 45963720.

The previous prime is 145552109. The next prime is 145552129. The reversal of 145552122 is 221255541.

145552122 is digitally balanced in base 3, 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 (145552129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212454 + ... + 213137.

It is an arithmetic number, because the mean of its divisors is an integer number (13831740).

Almost surely, 2^145552122 is an apocalyptic number.

145552122 is an abundant number, since it is smaller than the sum of its proper divisors (186409638).

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

145552122 is a wasteful number, since it uses less digits than its factorization.

145552122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425618 (or 425615 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 145552122 is about 12064.4984147705. The cubic root of 145552122 is about 526.0247522170.

The spelling of 145552122 in words is "one hundred forty-five million, five hundred fifty-two thousand, one hundred twenty-two".