7855130 has 16 divisors (see below), whose sum is σ = 14406984. Its totient is φ = 3082560.

The previous prime is 7855109. The next prime is 7855163. The reversal of 7855130 is 315587.

It can be written as a sum of positive squares in 4 ways, for example, as 6775609 + 1079521 = 2603^2 + 1039^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7855093 and 7855102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6881 + ... + 7940.

Almost surely, 2^7855130 is an apocalyptic number.

7855130 is a deficient number, since it is larger than the sum of its proper divisors (6551854).

7855130 is a wasteful number, since it uses less digits than its factorization.

7855130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14881.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 7855130 is about 2802.7004834623. The cubic root of 7855130 is about 198.7853885273.

The spelling of 7855130 in words is "seven million, eight hundred fifty-five thousand, one hundred thirty".