145534446212 has 12 divisors (see below), whose sum is σ = 254688443856. Its totient is φ = 72766319400.

The previous prime is 145534446203. The next prime is 145534446217. The reversal of 145534446212 is 212644435541.

It is a super-2 number, since 2×145534446212² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145534446212.

It is not an unprimeable number, because it can be changed into a prime (145534446217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245903 + ... + 592905.

It is an arithmetic number, because the mean of its divisors is an integer number (21224036988).

Almost surely, 2^145534446212 is an apocalyptic number.

It is an amenable number.

145534446212 is a deficient number, since it is larger than the sum of its proper divisors (109153997644).

145534446212 is a wasteful number, since it uses less digits than its factorization.

145534446212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451858 (or 451856 counting only the distinct ones).

The product of its digits is 460800, while the sum is 41.

The spelling of 145534446212 in words is "one hundred forty-five billion, five hundred thirty-four million, four hundred forty-six thousand, two hundred twelve".