145023252 has 48 divisors (see below), whose sum is σ = 369868800. Its totient is φ = 43860960.

The previous prime is 145023227. The next prime is 145023253. The reversal of 145023252 is 252320541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145023253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112749 + ... + 114027.

It is an arithmetic number, because the mean of its divisors is an integer number (7705600).

Almost surely, 2^145023252 is an apocalyptic number.

145023252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145023252 is an abundant number, since it is smaller than the sum of its proper divisors (224845548).

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

145023252 is a wasteful number, since it uses less digits than its factorization.

145023252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156 (or 2154 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 145023252 is about 12042.5600268381. The cubic root of 145023252 is about 525.3868676852.

Adding to 145023252 its reverse (252320541), we get a palindrome (397343793).

The spelling of 145023252 in words is "one hundred forty-five million, twenty-three thousand, two hundred fifty-two".