145270212 has 12 divisors (see below), whose sum is σ = 338963856. Its totient is φ = 48423400.

The previous prime is 145270187. The next prime is 145270249. The reversal of 145270212 is 212072541.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×145270212² = 42206868989049888, which contains 22 as substring.

It is an unprimeable number.

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, 6052914 + ... + 6052937.

It is an arithmetic number, because the mean of its divisors is an integer number (28246988).

Almost surely, 2^145270212 is an apocalyptic number.

145270212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145270212 is an abundant number, since it is smaller than the sum of its proper divisors (193693644).

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

145270212 is a wasteful number, since it uses less digits than its factorization.

145270212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12105858 (or 12105856 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 145270212 is about 12052.8092990804. The cubic root of 145270212 is about 525.6849255449.

The spelling of 145270212 in words is "one hundred forty-five million, two hundred seventy thousand, two hundred twelve".