140530155 has 16 divisors (see below), whose sum is σ = 228205824. Its totient is φ = 73830240.

The previous prime is 140530123. The next prime is 140530193. The reversal of 140530155 is 551035041.

It is not a de Polignac number, because 140530155 - 2⁵ = 140530123 is a prime.

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, 68911 + ... + 70920.

It is an arithmetic number, because the mean of its divisors is an integer number (14262864).

Almost surely, 2^140530155 is an apocalyptic number.

140530155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140530155 is a deficient number, since it is larger than the sum of its proper divisors (87675669).

140530155 is a wasteful number, since it uses less digits than its factorization.

140530155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139906.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 140530155 is about 11854.5415347874. The cubic root of 140530155 is about 519.9040195140.

Adding to 140530155 its reverse (551035041), we get a palindrome (691565196).

The spelling of 140530155 in words is "one hundred forty million, five hundred thirty thousand, one hundred fifty-five".