147021678 has 24 divisors (see below), whose sum is σ = 337285728. Its totient is φ = 46124352.

The previous prime is 147021673. The next prime is 147021739. The reversal of 147021678 is 876120741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147021671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 239926 + ... + 240537.

It is an arithmetic number, because the mean of its divisors is an integer number (14053572).

Almost surely, 2^147021678 is an apocalyptic number.

147021678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

147021678 is an abundant number, since it is smaller than the sum of its proper divisors (190264050).

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

147021678 is a wasteful number, since it uses less digits than its factorization.

147021678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480488 (or 480485 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 147021678 is about 12125.2496056782. The cubic root of 147021678 is about 527.7891504877.

The spelling of 147021678 in words is "one hundred forty-seven million, twenty-one thousand, six hundred seventy-eight".