147843493 has 4 divisors (see below), whose sum is σ = 168964000. Its totient is φ = 126722988.

The previous prime is 147843461. The next prime is 147843533. The reversal of 147843493 is 394348741.

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, and also an emirpimes, since its reverse is a distinct semiprime: 394348741 = 17419 ⋅22639.

It is not a de Polignac number, because 147843493 - 2⁵ = 147843461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147843403) 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, 10560243 + ... + 10560256.

It is an arithmetic number, because the mean of its divisors is an integer number (42241000).

Almost surely, 2^147843493 is an apocalyptic number.

It is an amenable number.

147843493 is a deficient number, since it is larger than the sum of its proper divisors (21120507).

147843493 is an equidigital number, since it uses as much as digits as its factorization.

147843493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21120506.

The product of its digits is 290304, while the sum is 43.

The square root of 147843493 is about 12159.0909610875. The cubic root of 147843493 is about 528.7707276514.

The spelling of 147843493 in words is "one hundred forty-seven million, eight hundred forty-three thousand, four hundred ninety-three".