13540145250 has 64 divisors (see below), whose sum is σ = 33904765440. Its totient is φ = 3599107200.

The previous prime is 13540145231. The next prime is 13540145279. The reversal of 13540145250 is 5254104531.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205911 + ... + 263589.

It is an arithmetic number, because the mean of its divisors is an integer number (529761960).

Almost surely, 2^13540145250 is an apocalyptic number.

13540145250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13540145250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16952382720).

13540145250 is an abundant number, since it is smaller than the sum of its proper divisors (20364620190).

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

13540145250 is a wasteful number, since it uses less digits than its factorization.

13540145250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58012 (or 58002 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 13540145250 its reverse (5254104531), we get a palindrome (18794249781).

The spelling of 13540145250 in words is "thirteen billion, five hundred forty million, one hundred forty-five thousand, two hundred fifty".