147439746 has 48 divisors (see below), whose sum is σ = 334356984. Its totient is φ = 46904832.

The previous prime is 147439739. The next prime is 147439757. The reversal of 147439746 is 647934741.

147439746 is a `hidden beast` number, since 147 + 439 + 74 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 141491025 + 5948721 = 11895^2 + 2439^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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, 33210 + ... + 37386.

Almost surely, 2^147439746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 147439746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167178492).

147439746 is an abundant number, since it is smaller than the sum of its proper divisors (186917238).

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

147439746 is a wasteful number, since it uses less digits than its factorization.

147439746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4275 (or 4272 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 147439746 is about 12142.4769301819. The cubic root of 147439746 is about 528.2889473891.

The spelling of 147439746 in words is "one hundred forty-seven million, four hundred thirty-nine thousand, seven hundred forty-six".