2119451 has 4 divisors (see below), whose sum is σ = 2127600. Its totient is φ = 2111304.

The previous prime is 2119433. The next prime is 2119463. The reversal of 2119451 is 1549112.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2119451 - 2¹⁴ = 2103067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2119651) 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, 3671 + ... + 4208.

It is an arithmetic number, because the mean of its divisors is an integer number (531900).

2^2119451 is an apocalyptic number.

2119451 is a deficient number, since it is larger than the sum of its proper divisors (8149).

2119451 is an equidigital number, since it uses as much as digits as its factorization.

2119451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8148.

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

The square root of 2119451 is about 1455.8334382751. The cubic root of 2119451 is about 128.4520757765.

The spelling of 2119451 in words is "two million, one hundred nineteen thousand, four hundred fifty-one".