2054715191 has 4 divisors (see below), whose sum is σ = 2110248072. Its totient is φ = 1999182312.

The previous prime is 2054715167. The next prime is 2054715199. The reversal of 2054715191 is 1915174502.

It is a happy number.

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-2054715191 is a prime.

It is a super-2 number, since 2×2054715191² = 8443709032252332962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2054715199) 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, 27766385 + ... + 27766458.

It is an arithmetic number, because the mean of its divisors is an integer number (527562018).

Almost surely, 2^2054715191 is an apocalyptic number.

2054715191 is a deficient number, since it is larger than the sum of its proper divisors (55532881).

2054715191 is an equidigital number, since it uses as much as digits as its factorization.

2054715191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55532880.

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 2054715191 is about 45328.9663570658. The cubic root of 2054715191 is about 1271.3073092477.

Adding to 2054715191 its reverse (1915174502), we get a palindrome (3969889693).

The spelling of 2054715191 in words is "two billion, fifty-four million, seven hundred fifteen thousand, one hundred ninety-one".