840010131 has 48 divisors (see below), whose sum is σ = 1278803968. Its totient is φ = 530712000.

The previous prime is 840010123. The next prime is 840010133. The reversal of 840010131 is 131010048.

It is not a de Polignac number, because 840010131 - 2³ = 840010123 is a prime.

It is a super-2 number, since 2×840010131² = 1411234040365274322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (840010133) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5350305 + ... + 5350461.

Almost surely, 2^840010131 is an apocalyptic number.

840010131 is a deficient number, since it is larger than the sum of its proper divisors (438793837).

840010131 is a wasteful number, since it uses less digits than its factorization.

840010131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 840010131 is about 28982.9282682064. The cubic root of 840010131 is about 943.5425892987.

Adding to 840010131 its reverse (131010048), we get a palindrome (971020179).

The spelling of 840010131 in words is "eight hundred forty million, ten thousand, one hundred thirty-one".