145213332 has 24 divisors (see below), whose sum is σ = 369634272. Its totient is φ = 44004000.

The previous prime is 145213319. The next prime is 145213361. The reversal of 145213332 is 233312541.

145213332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 549919 + ... + 550182.

It is an arithmetic number, because the mean of its divisors is an integer number (15401428).

Almost surely, 2^145213332 is an apocalyptic number.

145213332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145213332 is an abundant number, since it is smaller than the sum of its proper divisors (224420940).

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

145213332 is a wasteful number, since it uses less digits than its factorization.

145213332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100119 (or 1100117 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 145213332 is about 12050.4494521989. The cubic root of 145213332 is about 525.6163066094.

Adding to 145213332 its reverse (233312541), we get a palindrome (378525873).

The spelling of 145213332 in words is "one hundred forty-five million, two hundred thirteen thousand, three hundred thirty-two".