145038552 has 64 divisors (see below), whose sum is σ = 398304000. Its totient is φ = 43807104.

The previous prime is 145038521. The next prime is 145038589. The reversal of 145038552 is 255830541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3574 + ... + 17402.

It is an arithmetic number, because the mean of its divisors is an integer number (6223500).

Almost surely, 2^145038552 is an apocalyptic number.

145038552 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 145038552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199152000).

145038552 is an abundant number, since it is smaller than the sum of its proper divisors (253265448).

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

145038552 is a wasteful number, since it uses less digits than its factorization.

145038552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13880 (or 13876 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 145038552 is about 12043.1952570736. The cubic root of 145038552 is about 525.4053431970.

The spelling of 145038552 in words is "one hundred forty-five million, thirty-eight thousand, five hundred fifty-two".