147899443 has 4 divisors (see below), whose sum is σ = 149681448. Its totient is φ = 146117440.

The previous prime is 147899369. The next prime is 147899467. The reversal of 147899443 is 344998741.

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 147899443 - 2¹³ = 147891251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147894443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 890878 + ... + 891043.

It is an arithmetic number, because the mean of its divisors is an integer number (37420362).

Almost surely, 2^147899443 is an apocalyptic number.

147899443 is a deficient number, since it is larger than the sum of its proper divisors (1782005).

147899443 is an equidigital number, since it uses as much as digits as its factorization.

147899443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782004.

The product of its digits is 870912, while the sum is 49.

The square root of 147899443 is about 12161.3914911082. The cubic root of 147899443 is about 528.8374220329.

The spelling of 147899443 in words is "one hundred forty-seven million, eight hundred ninety-nine thousand, four hundred forty-three".