431212142 has 32 divisors (see below), whose sum is σ = 686435904. Its totient is φ = 202752000.

The previous prime is 431212121. The next prime is 431212147. The reversal of 431212142 is 241212134.

It is a super-2 number, since 2×431212142² = 371887822816456328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431212147) 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 15 ways as a sum of consecutive naturals, for example, 1075142 + ... + 1075542.

It is an arithmetic number, because the mean of its divisors is an integer number (21451122).

Almost surely, 2^431212142 is an apocalyptic number.

431212142 is a deficient number, since it is larger than the sum of its proper divisors (255223762).

431212142 is a wasteful number, since it uses less digits than its factorization.

431212142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764.

The product of its digits is 384, while the sum is 20.

The square root of 431212142 is about 20765.6481237644. The cubic root of 431212142 is about 755.4927952467.

Adding to 431212142 its reverse (241212134), we get a palindrome (672424276).

The spelling of 431212142 in words is "four hundred thirty-one million, two hundred twelve thousand, one hundred forty-two".