431204147 has 4 divisors (see below), whose sum is σ = 470404536. Its totient is φ = 392003760.

The previous prime is 431204143. The next prime is 431204171. The reversal of 431204147 is 741402134.

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 431204147 - 2² = 431204143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431204143) 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, 19600178 + ... + 19600199.

It is an arithmetic number, because the mean of its divisors is an integer number (117601134).

Almost surely, 2^431204147 is an apocalyptic number.

431204147 is a deficient number, since it is larger than the sum of its proper divisors (39200389).

431204147 is a wasteful number, since it uses less digits than its factorization.

431204147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39200388.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 431204147 is about 20765.4556174431. The cubic root of 431204147 is about 755.4881260815.

The spelling of 431204147 in words is "four hundred thirty-one million, two hundred four thousand, one hundred forty-seven".