2191514 has 16 divisors (see below), whose sum is σ = 3655680. Its totient is φ = 978480.

The previous prime is 2191513. The next prime is 2191523. The reversal of 2191514 is 4151912.

It is a happy number.

It is a super-2 number, since 2×2191514² = 9605467224392, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2191514.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2191513) 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, 554 + ... + 2165.

It is an arithmetic number, because the mean of its divisors is an integer number (228480).

2^2191514 is an apocalyptic number.

2191514 is a deficient number, since it is larger than the sum of its proper divisors (1464166).

2191514 is a wasteful number, since it uses less digits than its factorization.

2191514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2765.

The product of its digits is 360, while the sum is 23.

The square root of 2191514 is about 1480.3763035120. The cubic root of 2191514 is about 129.8917046824.

The spelling of 2191514 in words is "two million, one hundred ninety-one thousand, five hundred fourteen".