147381912 has 24 divisors (see below), whose sum is σ = 399159540. Its totient is φ = 49127280.

The previous prime is 147381901. The next prime is 147381919. The reversal of 147381912 is 219183741.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147381919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1023414 + ... + 1023557.

Almost surely, 2^147381912 is an apocalyptic number.

147381912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

147381912 is an abundant number, since it is smaller than the sum of its proper divisors (251777628).

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

147381912 is a wasteful number, since it uses less digits than its factorization.

147381912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046983 (or 2046976 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 147381912 is about 12140.0952220318. The cubic root of 147381912 is about 528.2198636684.

The spelling of 147381912 in words is "one hundred forty-seven million, three hundred eighty-one thousand, nine hundred twelve".