145023488 has 40 divisors (see below), whose sum is σ = 291861900. Its totient is φ = 71987200.

The previous prime is 145023421. The next prime is 145023491. The reversal of 145023488 is 884320541.

It can be written as a sum of positive squares in 2 ways, for example, as 115949824 + 29073664 = 10768^2 + 5392^2 .

It is a super-2 number, since 2×145023488² = 42063624143372288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75338 + ... + 77238.

Almost surely, 2^145023488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145023488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145930950).

145023488 is an abundant number, since it is smaller than the sum of its proper divisors (146838412).

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

145023488 is an equidigital number, since it uses as much as digits as its factorization.

145023488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068 (or 2052 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 145023488 is about 12042.5698254152. The cubic root of 145023488 is about 525.3871526768.

The spelling of 145023488 in words is "one hundred forty-five million, twenty-three thousand, four hundred eighty-eight".