13154433140 has 48 divisors (see below), whose sum is σ = 28435663872. Its totient is φ = 5107879296.

The previous prime is 13154433133. The next prime is 13154433151. The reversal of 13154433140 is 4133445131.

It is a happy number.

It is a super-2 number, since 2×13154433140² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307757 + ... + 347883.

It is an arithmetic number, because the mean of its divisors is an integer number (592409664).

Almost surely, 2^13154433140 is an apocalyptic number.

13154433140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13154433140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14217831936).

13154433140 is an abundant number, since it is smaller than the sum of its proper divisors (15281230732).

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

13154433140 is a wasteful number, since it uses less digits than its factorization.

13154433140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40616 (or 40614 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 13154433140 its reverse (4133445131), we get a palindrome (17287878271).

The spelling of 13154433140 in words is "thirteen billion, one hundred fifty-four million, four hundred thirty-three thousand, one hundred forty".