7172261 has 4 divisors (see below), whose sum is σ = 7224000. Its totient is φ = 7120524.

The previous prime is 7172237. The next prime is 7172267. The reversal of 7172261 is 1622717.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1622717 = 73 ⋅22229.

It is a cyclic number.

It is not a de Polignac number, because 7172261 - 2¹⁰ = 7171237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7172261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7172267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25661 + ... + 25938.

It is an arithmetic number, because the mean of its divisors is an integer number (1806000).

Almost surely, 2^7172261 is an apocalyptic number.

It is an amenable number.

7172261 is a deficient number, since it is larger than the sum of its proper divisors (51739).

7172261 is a wasteful number, since it uses less digits than its factorization.

7172261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51738.

The product of its digits is 1176, while the sum is 26.

The square root of 7172261 is about 2678.1077274822. The cubic root of 7172261 is about 192.8495789835.

Adding to 7172261 its reverse (1622717), we get a palindrome (8794978).

The spelling of 7172261 in words is "seven million, one hundred seventy-two thousand, two hundred sixty-one".