6191261 has 4 divisors (see below), whose sum is σ = 6205500. Its totient is φ = 6177024.

The previous prime is 6191257. The next prime is 6191279. The reversal of 6191261 is 1621916.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5152900 + 1038361 = 2270^2 + 1019^2 .

It is a cyclic number.

It is not a de Polignac number, because 6191261 - 2² = 6191257 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 6191261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6191201) 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, 6446 + ... + 7343.

It is an arithmetic number, because the mean of its divisors is an integer number (1551375).

Almost surely, 2^6191261 is an apocalyptic number.

It is an amenable number.

6191261 is a deficient number, since it is larger than the sum of its proper divisors (14239).

6191261 is a wasteful number, since it uses less digits than its factorization.

6191261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14238.

The product of its digits is 648, while the sum is 26.

The square root of 6191261 is about 2488.2244673662. The cubic root of 6191261 is about 183.6227007908.

The spelling of 6191261 in words is "six million, one hundred ninety-one thousand, two hundred sixty-one".