6429131 has 4 divisors (see below), whose sum is σ = 6441000. Its totient is φ = 6417264.

The previous prime is 6429109. The next prime is 6429139. The reversal of 6429131 is 1319246.

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 6429131 - 2¹⁸ = 6166987 is a prime.

It is a super-2 number, since 2×6429131² = 82667450830322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6429131.

It is not an unprimeable number, because it can be changed into a prime (6429139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5081 + ... + 6218.

It is an arithmetic number, because the mean of its divisors is an integer number (1610250).

Almost surely, 2^6429131 is an apocalyptic number.

6429131 is a deficient number, since it is larger than the sum of its proper divisors (11869).

6429131 is a wasteful number, since it uses less digits than its factorization.

6429131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11868.

The product of its digits is 1296, while the sum is 26.

The square root of 6429131 is about 2535.5731107582. The cubic root of 6429131 is about 185.9448231139.

The spelling of 6429131 in words is "six million, four hundred twenty-nine thousand, one hundred thirty-one".