155134140 has 96 divisors (see below), whose sum is σ = 498161664. Its totient is φ = 35335680.

The previous prime is 155134139. The next prime is 155134157. The reversal of 155134140 is 41431551.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 155134140.

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, 180592 + ... + 181448.

It is an arithmetic number, because the mean of its divisors is an integer number (5189184).

Almost surely, 2^155134140 is an apocalyptic number.

155134140 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 155134140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249080832).

155134140 is an abundant number, since it is smaller than the sum of its proper divisors (343027524).

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

155134140 is a wasteful number, since it uses less digits than its factorization.

155134140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307 (or 1305 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 155134140 is about 12455.2856249867. The cubic root of 155134140 is about 537.3234494970.

Adding to 155134140 its reverse (41431551), we get a palindrome (196565691).

The spelling of 155134140 in words is "one hundred fifty-five million, one hundred thirty-four thousand, one hundred forty".