7161000 has 256 divisors, whose sum is σ = 28753920. Its totient is φ = 1440000.

The previous prime is 7160987. The next prime is 7161013. The reversal of 7161000 is 1617.

It is an interprime number because it is at equal distance from previous prime (7160987) and next prime (7161013).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 230985 + ... + 231015.

It is an arithmetic number, because the mean of its divisors is an integer number (112320).

Almost surely, 2^7161000 is an apocalyptic number.

7161000 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 7161000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14376960).

7161000 is an abundant number, since it is smaller than the sum of its proper divisors (21592920).

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

7161000 is a wasteful number, since it uses less digits than its factorization.

7161000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 7161000 is about 2676.0044843012. The cubic root of 7161000 is about 192.7485965704.

Adding to 7161000 its reverse (1617), we get a palindrome (7162617).

The spelling of 7161000 in words is "seven million, one hundred sixty-one thousand".