147478812 has 24 divisors (see below), whose sum is σ = 370588176. Its totient is φ = 45378048.

The previous prime is 147478801. The next prime is 147478841. The reversal of 147478812 is 218874741.

It is a congruent number.

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, 472533 + ... + 472844.

It is an arithmetic number, because the mean of its divisors is an integer number (15441174).

Almost surely, 2^147478812 is an apocalyptic number.

147478812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

147478812 is an abundant number, since it is smaller than the sum of its proper divisors (223109364).

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

147478812 is a wasteful number, since it uses less digits than its factorization.

147478812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945397 (or 945395 counting only the distinct ones).

The product of its digits is 100352, while the sum is 42.

The square root of 147478812 is about 12144.0854740075. The cubic root of 147478812 is about 528.3356021844.

The spelling of 147478812 in words is "one hundred forty-seven million, four hundred seventy-eight thousand, eight hundred twelve".