147944473 has 4 divisors (see below), whose sum is σ = 148097808. Its totient is φ = 147791140.

The previous prime is 147944471. The next prime is 147944479. The reversal of 147944473 is 374449741.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 147944473 - 2¹ = 147944471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147944471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75211 + ... + 77152.

It is an arithmetic number, because the mean of its divisors is an integer number (37024452).

Almost surely, 2^147944473 is an apocalyptic number.

It is an amenable number.

147944473 is a deficient number, since it is larger than the sum of its proper divisors (153335).

147944473 is an equidigital number, since it uses as much as digits as its factorization.

147944473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153334.

The product of its digits is 338688, while the sum is 43.

The square root of 147944473 is about 12163.2427008590. The cubic root of 147944473 is about 528.8910871725.

The spelling of 147944473 in words is "one hundred forty-seven million, nine hundred forty-four thousand, four hundred seventy-three".