145146252 has 24 divisors (see below), whose sum is σ = 338881536. Its totient is φ = 48352528.

The previous prime is 145146233. The next prime is 145146259. The reversal of 145146252 is 252641541.

It is not an unprimeable number, because it can be changed into a prime (145146259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26893 + ... + 31835.

It is an arithmetic number, because the mean of its divisors is an integer number (14120064).

Almost surely, 2^145146252 is an apocalyptic number.

145146252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145146252 is an abundant number, since it is smaller than the sum of its proper divisors (193735284).

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

145146252 is a wasteful number, since it uses less digits than its factorization.

145146252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7397 (or 7395 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 145146252 is about 12047.6658320191. The cubic root of 145146252 is about 525.5353595598.

Adding to 145146252 its reverse (252641541), we get a palindrome (397787793).

The spelling of 145146252 in words is "one hundred forty-five million, one hundred forty-six thousand, two hundred fifty-two".