13540312546 has 8 divisors (see below), whose sum is σ = 20310998364. Its totient is φ = 6769979760.

The previous prime is 13540312531. The next prime is 13540312561. The reversal of 13540312546 is 64521304531.

It is an interprime number because it is at equal distance from previous prime (13540312531) and next prime (13540312561).

It can be written as a sum of positive squares in 2 ways, for example, as 13523131521 + 17181025 = 116289^2 + 4145^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52576 + ... + 172756.

Almost surely, 2^13540312546 is an apocalyptic number.

13540312546 is a deficient number, since it is larger than the sum of its proper divisors (6770685818).

13540312546 is a wasteful number, since it uses less digits than its factorization.

13540312546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176516.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 13540312546 in words is "thirteen billion, five hundred forty million, three hundred twelve thousand, five hundred forty-six".