7130165140 has 96 divisors (see below), whose sum is σ = 17882371584. Its totient is φ = 2334942720.

The previous prime is 7130165123. The next prime is 7130165149. The reversal of 7130165140 is 415610317.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 7130165099 and 7130165108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7130165149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3209230 + ... + 3211450.

It is an arithmetic number, because the mean of its divisors is an integer number (186274704).

Almost surely, 2^7130165140 is an apocalyptic number.

7130165140 is a gapful number since it is divisible by the number (70) 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 7130165140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8941185792).

7130165140 is an abundant number, since it is smaller than the sum of its proper divisors (10752206444).

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

7130165140 is a wasteful number, since it uses less digits than its factorization.

7130165140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3257 (or 3255 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 7130165140 is about 84440.3051865636. The cubic root of 7130165140 is about 1924.7154368818.

Adding to 7130165140 its reverse (415610317), we get a palindrome (7545775457).

The spelling of 7130165140 in words is "seven billion, one hundred thirty million, one hundred sixty-five thousand, one hundred forty".