7135129 has 4 divisors (see below), whose sum is σ = 7445376. Its totient is φ = 6824884.

The previous prime is 7135123. The next prime is 7135133. The reversal of 7135129 is 9215317.

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.

It is a cyclic number.

It is not a de Polignac number, because 7135129 - 2⁷ = 7135001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7135097 and 7135106.

It is not an unprimeable number, because it can be changed into a prime (7135123) 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, 155089 + ... + 155134.

It is an arithmetic number, because the mean of its divisors is an integer number (1861344).

Almost surely, 2^7135129 is an apocalyptic number.

It is an amenable number.

7135129 is a deficient number, since it is larger than the sum of its proper divisors (310247).

7135129 is a wasteful number, since it uses less digits than its factorization.

7135129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310246.

The product of its digits is 1890, while the sum is 28.

The square root of 7135129 is about 2671.1662247041. The cubic root of 7135129 is about 192.5161981085.

The spelling of 7135129 in words is "seven million, one hundred thirty-five thousand, one hundred twenty-nine".