145303212 has 24 divisors (see below), whose sum is σ = 339721200. Its totient is φ = 48337216.

The previous prime is 145303189. The next prime is 145303229. The reversal of 145303212 is 212303541.

It is a super-2 number, since 2×145303212² = 42226046835033888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5787 + ... + 18002.

It is an arithmetic number, because the mean of its divisors is an integer number (14155050).

Almost surely, 2^145303212 is an apocalyptic number.

145303212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145303212 is an abundant number, since it is smaller than the sum of its proper divisors (194417988).

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

145303212 is a wasteful number, since it uses less digits than its factorization.

145303212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24305 (or 24303 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 145303212 is about 12054.1781967914. The cubic root of 145303212 is about 525.7247278987.

Adding to 145303212 its reverse (212303541), we get a palindrome (357606753).

The spelling of 145303212 in words is "one hundred forty-five million, three hundred three thousand, two hundred twelve".