13254157242 has 48 divisors (see below), whose sum is σ = 29643491592. Its totient is φ = 4276782720.

The previous prime is 13254157183. The next prime is 13254157243. The reversal of 13254157242 is 24275145231.

13254157242 is a `hidden beast` number, since 1 + 3 + 2 + 5 + 41 + 572 + 42 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 12782789721 + 471367521 = 113061^2 + 21711^2 .

It is a super-2 number, since 2×13254157242² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13254157197 and 13254157206.

It is not an unprimeable number, because it can be changed into a prime (13254157243) 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, 80692 + ... + 181712.

Almost surely, 2^13254157242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13254157242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14821745796).

13254157242 is an abundant number, since it is smaller than the sum of its proper divisors (16389334350).

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

13254157242 is a wasteful number, since it uses less digits than its factorization.

13254157242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101263 (or 101260 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The spelling of 13254157242 in words is "thirteen billion, two hundred fifty-four million, one hundred fifty-seven thousand, two hundred forty-two".