134402430140 has 96 divisors (see below), whose sum is σ = 316782676224. Its totient is φ = 47484264960.

The previous prime is 134402430139. The next prime is 134402430161. The reversal of 134402430140 is 41034204431.

It is a congruent number.

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, 1013567 + ... + 1138473.

It is an arithmetic number, because the mean of its divisors is an integer number (3299819544).

Almost surely, 2^134402430140 is an apocalyptic number.

134402430140 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 134402430140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158391338112).

134402430140 is an abundant number, since it is smaller than the sum of its proper divisors (182380246084).

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

134402430140 is a wasteful number, since it uses less digits than its factorization.

134402430140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125067 (or 125065 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 134402430140 its reverse (41034204431), we get a palindrome (175436634571).

The spelling of 134402430140 in words is "one hundred thirty-four billion, four hundred two million, four hundred thirty thousand, one hundred forty".