145441212 has 144 divisors (see below), whose sum is σ = 416747520. Its totient is φ = 39312000.

The previous prime is 145441201. The next prime is 145441223. The reversal of 145441212 is 212144541.

It is an interprime number because it is at equal distance from previous prime (145441201) and next prime (145441223).

It is a super-2 number, since 2×145441212² = 42306292296057888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1439962 + ... + 1440062.

It is an arithmetic number, because the mean of its divisors is an integer number (2894080).

Almost surely, 2^145441212 is an apocalyptic number.

145441212 is a gapful number since it is divisible by the number (12) 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 145441212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208373760).

145441212 is an abundant number, since it is smaller than the sum of its proper divisors (271306308).

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

145441212 is a wasteful number, since it uses less digits than its factorization.

145441212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 223 counting only the distinct ones).

The product of its digits is 1280, while the sum is 24.

The square root of 145441212 is about 12059.9009946185. The cubic root of 145441212 is about 525.8911088427.

Adding to 145441212 its reverse (212144541), we get a palindrome (357585753).

The spelling of 145441212 in words is "one hundred forty-five million, four hundred forty-one thousand, two hundred twelve".