7140129 has 4 divisors (see below), whose sum is σ = 9520176. Its totient is φ = 4760084.

The previous prime is 7140127. The next prime is 7140157. The reversal of 7140129 is 9210417.

7140129 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9210417 = 3 ⋅3070139.

It is a cyclic number.

It is not a de Polignac number, because 7140129 - 2¹ = 7140127 is a prime.

7140129 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7140099 and 7140108.

It is not an unprimeable number, because it can be changed into a prime (7140127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1190019 + ... + 1190024.

It is an arithmetic number, because the mean of its divisors is an integer number (2380044).

Almost surely, 2^7140129 is an apocalyptic number.

It is an amenable number.

7140129 is a deficient number, since it is larger than the sum of its proper divisors (2380047).

7140129 is a wasteful number, since it uses less digits than its factorization.

7140129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2380046.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 7140129 is about 2672.1019815868. The cubic root of 7140129 is about 192.5611567085.

The spelling of 7140129 in words is "seven million, one hundred forty thousand, one hundred twenty-nine".