5156049191 has 4 divisors (see below), whose sum is σ = 5253333192. Its totient is φ = 5058765192.

The previous prime is 5156049179. The next prime is 5156049257. The reversal of 5156049191 is 1919406515.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5156049191 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 (5156049791) 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, 48641921 + ... + 48642026.

It is an arithmetic number, because the mean of its divisors is an integer number (1313333298).

Almost surely, 2^5156049191 is an apocalyptic number.

5156049191 is a deficient number, since it is larger than the sum of its proper divisors (97284001).

5156049191 is an equidigital number, since it uses as much as digits as its factorization.

5156049191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97284000.

The product of its (nonzero) digits is 48600, while the sum is 41.

The square root of 5156049191 is about 71805.6348137108. The cubic root of 5156049191 is about 1727.5833801381.

The spelling of 5156049191 in words is "five billion, one hundred fifty-six million, forty-nine thousand, one hundred ninety-one".