145523052 has 72 divisors (see below), whose sum is σ = 399759360. Its totient is φ = 44465760.

The previous prime is 145523041. The next prime is 145523069. The reversal of 145523052 is 250325541.

It is a happy number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 17773 + ... + 24635.

Almost surely, 2^145523052 is an apocalyptic number.

145523052 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 145523052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199879680).

145523052 is an abundant number, since it is smaller than the sum of its proper divisors (254236308).

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

145523052 is a wasteful number, since it uses less digits than its factorization.

145523052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6923 (or 6918 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 145523052 is about 12063.2935801132. The cubic root of 145523052 is about 525.9897302664.

Adding to 145523052 its reverse (250325541), we get a palindrome (395848593).

The spelling of 145523052 in words is "one hundred forty-five million, five hundred twenty-three thousand, fifty-two".