145452 has 48 divisors (see below), whose sum is σ = 387072. Its totient is φ = 42240.

The previous prime is 145451. The next prime is 145459. The reversal of 145452 is 254541.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (145451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4677 + ... + 4707.

It is an arithmetic number, because the mean of its divisors is an integer number (8064).

2¹⁴⁵⁴⁵² is an apocalyptic number.

145452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193536).

145452 is an abundant number, since it is smaller than the sum of its proper divisors (241620).

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

145452 is a wasteful number, since it uses less digits than its factorization.

145452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 76 counting only the distinct ones).

The product of its digits is 800, while the sum is 21.

The square root of 145452 is about 381.3816985646. The cubic root of 145452 is about 52.5904111056.

Adding to 145452 its reverse (254541), we get a palindrome (399993).

The spelling of 145452 in words is "one hundred forty-five thousand, four hundred fifty-two".