7140155 has 16 divisors (see below), whose sum is σ = 9427968. Its totient is φ = 5148000.

The previous prime is 7140127. The next prime is 7140157. The reversal of 7140155 is 5510417.

It is not a de Polignac number, because 7140155 - 2¹⁴ = 7123771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7140155.

It is not an unprimeable number, because it can be changed into a prime (7140157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6710 + ... + 7700.

It is an arithmetic number, because the mean of its divisors is an integer number (589248).

Almost surely, 2^7140155 is an apocalyptic number.

7140155 is a deficient number, since it is larger than the sum of its proper divisors (2287813).

7140155 is a wasteful number, since it uses less digits than its factorization.

7140155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 7140155 is about 2672.1068466661. The cubic root of 7140155 is about 192.5613904384.

The spelling of 7140155 in words is "seven million, one hundred forty thousand, one hundred fifty-five".