431279061 has 4 divisors (see below), whose sum is σ = 575038752. Its totient is φ = 287519372.

The previous prime is 431279059. The next prime is 431279087. The reversal of 431279061 is 160972134.

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 431279061 - 2¹ = 431279059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431279011) 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, 71879841 + ... + 71879846.

It is an arithmetic number, because the mean of its divisors is an integer number (143759688).

Almost surely, 2^431279061 is an apocalyptic number.

It is an amenable number.

431279061 is a deficient number, since it is larger than the sum of its proper divisors (143759691).

431279061 is a wasteful number, since it uses less digits than its factorization.

431279061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143759690.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 431279061 is about 20767.2593521630. The cubic root of 431279061 is about 755.5318743931.

The spelling of 431279061 in words is "four hundred thirty-one million, two hundred seventy-nine thousand, sixty-one".