7130550 has 48 divisors (see below), whose sum is σ = 20212992. Its totient is φ = 1629600.

The previous prime is 7130537. The next prime is 7130551. The reversal of 7130550 is 550317.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a house number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7130551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2346 + ... + 4445.

It is an arithmetic number, because the mean of its divisors is an integer number (421104).

Almost surely, 2^7130550 is an apocalyptic number.

7130550 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7130550 is an abundant number, since it is smaller than the sum of its proper divisors (13082442).

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

7130550 is a wasteful number, since it uses less digits than its factorization.

7130550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6813 (or 6808 counting only the distinct ones).

The product of its (nonzero) digits is 525, while the sum is 21.

The square root of 7130550 is about 2670.3089708871. The cubic root of 7130550 is about 192.4750065937.

Adding to 7130550 its reverse (550317), we get a palindrome (7680867).

The spelling of 7130550 in words is "seven million, one hundred thirty thousand, five hundred fifty".