145216384 has 16 divisors (see below), whose sum is σ = 289298520. Its totient is φ = 72608128.

The previous prime is 145216361. The next prime is 145216387. The reversal of 145216384 is 483612541.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-3 number, since 3×145216384³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145216387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 567124 + ... + 567379.

Almost surely, 2^145216384 is an apocalyptic number.

It is an amenable number.

145216384 is a deficient number, since it is larger than the sum of its proper divisors (144082136).

145216384 is an equidigital number, since it uses as much as digits as its factorization.

145216384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134517 (or 1134505 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 145216384 is about 12050.5760858143. The cubic root of 145216384 is about 525.6199889382.

The spelling of 145216384 in words is "one hundred forty-five million, two hundred sixteen thousand, three hundred eighty-four".