4187261 has 4 divisors (see below), whose sum is σ = 4509372. Its totient is φ = 3865152.

The previous prime is 4187257. The next prime is 4187269. The reversal of 4187261 is 1627814.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1627814 = 2 ⋅813907.

It can be written as a sum of positive squares in 2 ways, for example, as 1907161 + 2280100 = 1381^2 + 1510^2 .

It is a cyclic number.

It is not a de Polignac number, because 4187261 - 2² = 4187257 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4187269) 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, 161036 + ... + 161061.

It is an arithmetic number, because the mean of its divisors is an integer number (1127343).

Almost surely, 2^4187261 is an apocalyptic number.

It is an amenable number.

4187261 is a deficient number, since it is larger than the sum of its proper divisors (322111).

4187261 is a wasteful number, since it uses less digits than its factorization.

4187261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322110.

The product of its digits is 2688, while the sum is 29.

The square root of 4187261 is about 2046.2797951404. The cubic root of 4187261 is about 161.1795766436.

The spelling of 4187261 in words is "four million, one hundred eighty-seven thousand, two hundred sixty-one".