145411216 has 20 divisors (see below), whose sum is σ = 283170492. Its totient is φ = 72334976.

The previous prime is 145411213. The next prime is 145411229. The reversal of 145411216 is 612114541.

It can be written as a sum of positive squares in 2 ways, for example, as 121440400 + 23970816 = 11020^2 + 4896^2 .

It is a super-2 number, since 2×145411216² = 42288843477197312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145411213) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 19915 + ... + 26218.

Almost surely, 2^145411216 is an apocalyptic number.

145411216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

145411216 is a deficient number, since it is larger than the sum of its proper divisors (137759276).

145411216 is a wasteful number, since it uses less digits than its factorization.

145411216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46338 (or 46332 counting only the distinct ones).

The product of its digits is 960, while the sum is 25.

The square root of 145411216 is about 12058.6573050236. The cubic root of 145411216 is about 525.8549528498.

Adding to 145411216 its reverse (612114541), we get a palindrome (757525757).

The spelling of 145411216 in words is "one hundred forty-five million, four hundred eleven thousand, two hundred sixteen".