145120332 has 24 divisors (see below), whose sum is σ = 386987776. Its totient is φ = 41462928.

The previous prime is 145120301. The next prime is 145120333. The reversal of 145120332 is 233021541.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 145120299 and 145120308.

It is not an unprimeable number, because it can be changed into a prime (145120333) 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, 863728 + ... + 863895.

Almost surely, 2^145120332 is an apocalyptic number.

145120332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145120332 is an abundant number, since it is smaller than the sum of its proper divisors (241867444).

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

145120332 is a wasteful number, since it uses less digits than its factorization.

145120332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727637 (or 1727635 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 145120332 is about 12046.5900569414. The cubic root of 145120332 is about 525.5040745920.

Adding to 145120332 its reverse (233021541), we get a palindrome (378141873).

The spelling of 145120332 in words is "one hundred forty-five million, one hundred twenty thousand, three hundred thirty-two".