1431131 has 8 divisors (see below), whose sum is σ = 1550640. Its totient is φ = 1312992.

The previous prime is 1431127. The next prime is 1431139. The reversal of 1431131 is 1311341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1431131 - 2² = 1431127 is a prime.

It is a super-2 number, since 2×1431131² = 4096271878322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1431139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3485 + ... + 3873.

It is an arithmetic number, because the mean of its divisors is an integer number (193830).

2^1431131 is an apocalyptic number.

1431131 is a deficient number, since it is larger than the sum of its proper divisors (119509).

1431131 is a wasteful number, since it uses less digits than its factorization.

1431131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685.

The product of its digits is 36, while the sum is 14.

The square root of 1431131 is about 1196.2988756995. The cubic root of 1431131 is about 112.6920111900.

Adding to 1431131 its reverse (1311341), we get a palindrome (2742472).

The spelling of 1431131 in words is "one million, four hundred thirty-one thousand, one hundred thirty-one".