147181212 has 72 divisors (see below), whose sum is σ = 393237936. Its totient is φ = 48117888.

The previous prime is 147181171. The next prime is 147181241. The reversal of 147181212 is 212181741.

147181212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50088 + ... + 52944.

It is an arithmetic number, because the mean of its divisors is an integer number (5461638).

Almost surely, 2^147181212 is an apocalyptic number.

147181212 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 147181212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196618968).

147181212 is an abundant number, since it is smaller than the sum of its proper divisors (246056724).

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

147181212 is a wasteful number, since it uses less digits than its factorization.

147181212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929 (or 2915 counting only the distinct ones).

The product of its digits is 896, while the sum is 27.

The square root of 147181212 is about 12131.8264082536. The cubic root of 147181212 is about 527.9799837453.

The spelling of 147181212 in words is "one hundred forty-seven million, one hundred eighty-one thousand, two hundred twelve".