2531208942 has 12 divisors (see below), whose sum is σ = 5484286080. Its totient is φ = 843736308.

The previous prime is 2531208913. The next prime is 2531208947. The reversal of 2531208942 is 2498021352.

It is a happy number.

2531208942 is a `hidden beast` number, since 2 + 531 + 2 + 0 + 89 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2531208897 and 2531208906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531208947) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70311342 + ... + 70311377.

It is an arithmetic number, because the mean of its divisors is an integer number (457023840).

Almost surely, 2^2531208942 is an apocalyptic number.

2531208942 is an abundant number, since it is smaller than the sum of its proper divisors (2953077138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2531208942 is a wasteful number, since it uses less digits than its factorization.

2531208942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140622727 (or 140622724 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 2531208942 is about 50311.1214544061. The cubic root of 2531208942 is about 1362.8330759584.

The spelling of 2531208942 in words is "two billion, five hundred thirty-one million, two hundred eight thousand, nine hundred forty-two".