431240126 has 4 divisors (see below), whose sum is σ = 646860192. Its totient is φ = 215620062.

The previous prime is 431240113. The next prime is 431240129. The reversal of 431240126 is 621042134.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431240129) 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 as a sum of consecutive naturals, namely, 107810030 + ... + 107810033.

It is an arithmetic number, because the mean of its divisors is an integer number (161715048).

Almost surely, 2^431240126 is an apocalyptic number.

431240126 is a deficient number, since it is larger than the sum of its proper divisors (215620066).

431240126 is a wasteful number, since it uses less digits than its factorization.

431240126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215620065.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 431240126 is about 20766.3219179517. The cubic root of 431240126 is about 755.5091377465.

The spelling of 431240126 in words is "four hundred thirty-one million, two hundred forty thousand, one hundred twenty-six".