147000000 has 294 divisors, whose sum is σ = 565539636. Its totient is φ = 33600000.

The previous prime is 146999987. The next prime is 147000011. The reversal of 147000000 is 741.

It is a tau number, because it is divible by the number of its divisors (294).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 147000000.

It is an unprimeable number.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 20999997 + ... + 21000003.

Almost surely, 2^147000000 is an apocalyptic number.

147000000 is a gapful number since it is divisible by the number (10) 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 147000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282769818).

147000000 is an abundant number, since it is smaller than the sum of its proper divisors (418539636).

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

147000000 is an frugal number, since it uses more digits than its factorization.

147000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59 (or 17 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 12.

The square root of 147000000 is about 12124.3556529821. The cubic root of 147000000 is about 527.7632087904.

Multiplying 147000000 by its sum of digits (12), we get a square (1764000000 = 42000²).

147000000 divided by its sum of digits (12) gives a square (12250000 = 3500²).

Adding to 147000000 its reverse (741), we get a palindrome (147000741).

The spelling of 147000000 in words is "one hundred forty-seven million", and thus it is an aban number.