147943387 has 4 divisors (see below), whose sum is σ = 148120560. Its totient is φ = 147766216.

The previous prime is 147943381. The next prime is 147943403. The reversal of 147943387 is 783349741.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 147943387 - 2²⁷ = 13725659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147943381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87328 + ... + 89005.

It is an arithmetic number, because the mean of its divisors is an integer number (37030140).

Almost surely, 2^147943387 is an apocalyptic number.

147943387 is a deficient number, since it is larger than the sum of its proper divisors (177173).

147943387 is an equidigital number, since it uses as much as digits as its factorization.

147943387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177172.

The product of its digits is 508032, while the sum is 46.

The square root of 147943387 is about 12163.1980580767. The cubic root of 147943387 is about 528.8897930448.

It can be divided in two parts, 14794 and 3387, that added together give a palindrome (18181).

The spelling of 147943387 in words is "one hundred forty-seven million, nine hundred forty-three thousand, three hundred eighty-seven".