429131861 has 8 divisors (see below), whose sum is σ = 449378880. Its totient is φ = 409017312.

The previous prime is 429131849. The next prime is 429131869. The reversal of 429131861 is 168131924.

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 429131861 - 2¹⁰ = 429130837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (429131869) 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 7 ways as a sum of consecutive naturals, for example, 26456 + ... + 39473.

It is an arithmetic number, because the mean of its divisors is an integer number (56172360).

Almost surely, 2^429131861 is an apocalyptic number.

It is an amenable number.

429131861 is a deficient number, since it is larger than the sum of its proper divisors (20247019).

429131861 is a wasteful number, since it uses less digits than its factorization.

429131861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66235.

The product of its digits is 10368, while the sum is 35.

The square root of 429131861 is about 20715.4980871810. The cubic root of 429131861 is about 754.2759375560.

The spelling of 429131861 in words is "four hundred twenty-nine million, one hundred thirty-one thousand, eight hundred sixty-one".