145216 has 14 divisors (see below), whose sum is σ = 288290. Its totient is φ = 72576.

The previous prime is 145213. The next prime is 145219. The reversal of 145216 is 612541.

It is an interprime number because it is at equal distance from previous prime (145213) and next prime (145219).

It can be written as a sum of positive squares in only one way, i.e., 87616 + 57600 = 296^2 + 240^2 .

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 145193 and 145202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071 + ... + 1198.

2¹⁴⁵²¹⁶ is an apocalyptic number.

145216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

145216 is a deficient number, since it is larger than the sum of its proper divisors (143074).

145216 is an equidigital number, since it uses as much as digits as its factorization.

145216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281 (or 2271 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 145216 is about 381.0721716421. The cubic root of 145216 is about 52.5619525634.

Adding to 145216 its reverse (612541), we get a palindrome (757757).

It can be divided in two parts, 1452 and 16, that multiplied together give a palindrome (23232).

The spelling of 145216 in words is "one hundred forty-five thousand, two hundred sixteen".