13540312530 has 48 divisors (see below), whose sum is σ = 35220780504. Its totient is φ = 3609112320.

The previous prime is 13540312529. The next prime is 13540312531. The reversal of 13540312530 is 3521304531.

13540312530 is a `hidden beast` number, since 1 + 3 + 5 + 403 + 1 + 253 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (13540312529) and next prime (13540312531).

It can be written as a sum of positive squares in 4 ways, for example, as 11539271241 + 2001041289 = 107421^2 + 44733^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13540312494 and 13540312503.

It is not an unprimeable number, because it can be changed into a prime (13540312531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172312 + ... + 238268.

Almost surely, 2^13540312530 is an apocalyptic number.

13540312530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13540312530 is an abundant number, since it is smaller than the sum of its proper divisors (21680467974).

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

13540312530 is a wasteful number, since it uses less digits than its factorization.

13540312530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68251 (or 68248 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The spelling of 13540312530 in words is "thirteen billion, five hundred forty million, three hundred twelve thousand, five hundred thirty".