7611138 has 32 divisors (see below), whose sum is σ = 17910720. Its totient is φ = 2387520.

The previous prime is 7611127. The next prime is 7611139. The reversal of 7611138 is 8311167.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (7611139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3228 + ... + 5063.

It is an arithmetic number, because the mean of its divisors is an integer number (559710).

Almost surely, 2^7611138 is an apocalyptic number.

7611138 is an abundant number, since it is smaller than the sum of its proper divisors (10299582).

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

7611138 is a wasteful number, since it uses less digits than its factorization.

7611138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8319 (or 8313 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 7611138 is about 2758.8290994551. The cubic root of 7611138 is about 196.7055130899.

The spelling of 7611138 in words is "seven million, six hundred eleven thousand, one hundred thirty-eight".