145488816 has 120 divisors (see below), whose sum is σ = 452823696. Its totient is φ = 43230720.

The previous prime is 145488809. The next prime is 145488817. The reversal of 145488816 is 618884541.

145488816 is a `hidden beast` number, since 14 + 548 + 88 + 16 = 666.

It is not an unprimeable number, because it can be changed into a prime (145488817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83086 + ... + 84818.

Almost surely, 2^145488816 is an apocalyptic number.

145488816 is a gapful number since it is divisible by the number (16) 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 145488816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226411848).

145488816 is an abundant number, since it is smaller than the sum of its proper divisors (307334880).

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

145488816 is a wasteful number, since it uses less digits than its factorization.

145488816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1811 (or 1802 counting only the distinct ones).

The product of its digits is 245760, while the sum is 45.

The square root of 145488816 is about 12061.8744811907. The cubic root of 145488816 is about 525.9484786193.

The spelling of 145488816 in words is "one hundred forty-five million, four hundred eighty-eight thousand, eight hundred sixteen".