5161191 has 8 divisors (see below), whose sum is σ = 7864704. Its totient is φ = 2949240.

The previous prime is 5161187. The next prime is 5161229. The reversal of 5161191 is 1911615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5161191 - 2² = 5161187 is a prime.

5161191 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5161111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122865 + ... + 122906.

It is an arithmetic number, because the mean of its divisors is an integer number (983088).

Almost surely, 2^5161191 is an apocalyptic number.

5161191 is a deficient number, since it is larger than the sum of its proper divisors (2703513).

5161191 is a wasteful number, since it uses less digits than its factorization.

5161191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245781.

The product of its digits is 270, while the sum is 24.

The square root of 5161191 is about 2271.8254774520. The cubic root of 5161191 is about 172.8157460038.

The spelling of 5161191 in words is "five million, one hundred sixty-one thousand, one hundred ninety-one".