145222332 has 24 divisors (see below), whose sum is σ = 345247056. Its totient is φ = 47493888.

The previous prime is 145222307. The next prime is 145222333. The reversal of 145222332 is 233222541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145222333) 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, 113533 + ... + 114804.

It is an arithmetic number, because the mean of its divisors is an integer number (14385294).

Almost surely, 2^145222332 is an apocalyptic number.

145222332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145222332 is an abundant number, since it is smaller than the sum of its proper divisors (200024724).

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

145222332 is a wasteful number, since it uses less digits than its factorization.

145222332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228397 (or 228395 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 145222332 is about 12050.8228764678. The cubic root of 145222332 is about 525.6271652290.

Adding to 145222332 its reverse (233222541), we get a palindrome (378444873).

The spelling of 145222332 in words is "one hundred forty-five million, two hundred twenty-two thousand, three hundred thirty-two".