2145419 has 4 divisors (see below), whose sum is σ = 2156400. Its totient is φ = 2134440.

The previous prime is 2145401. The next prime is 2145421. The reversal of 2145419 is 9145412.

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 2145419 - 2⁸ = 2145163 is a prime.

It is a super-2 number, since 2×2145419² = 9205645371122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145439) 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, 5192 + ... + 5589.

It is an arithmetic number, because the mean of its divisors is an integer number (539100).

2^2145419 is an apocalyptic number.

2145419 is a deficient number, since it is larger than the sum of its proper divisors (10981).

2145419 is a wasteful number, since it uses less digits than its factorization.

2145419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10980.

The product of its digits is 1440, while the sum is 26.

The square root of 2145419 is about 1464.7248888443. The cubic root of 2145419 is about 128.9745558053.

The spelling of 2145419 in words is "two million, one hundred forty-five thousand, four hundred nineteen".