2738191 has 2 divisors, whose sum is σ = 2738192. Its totient is φ = 2738190.

The previous prime is 2738179. The next prime is 2738201. The reversal of 2738191 is 1918372.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2738191 - 2⁷ = 2738063 is a prime.

2738191 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2738291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1369095 + 1369096.

It is an arithmetic number, because the mean of its divisors is an integer number (1369096).

2^2738191 is an apocalyptic number.

2738191 is the 885-th centered heptagonal number.

2738191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2738191 is an equidigital number, since it uses as much as digits as its factorization.

2738191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 31.

The square root of 2738191 is about 1654.7480170709. The cubic root of 2738191 is about 139.9011376869.

It can be divided in two parts, 27381 and 91, that added together give a palindrome (27472).

The spelling of 2738191 in words is "two million, seven hundred thirty-eight thousand, one hundred ninety-one".