2145454 has 8 divisors (see below), whose sum is σ = 3225240. Its totient is φ = 1070376.

The previous prime is 2145443. The next prime is 2145469. The reversal of 2145454 is 4545412.

It is a happy number.

2145454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2145454² = 9205945732232, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372 + ... + 2104.

It is an arithmetic number, because the mean of its divisors is an integer number (403155).

2^2145454 is an apocalyptic number.

2145454 is a deficient number, since it is larger than the sum of its proper divisors (1079786).

2145454 is a wasteful number, since it uses less digits than its factorization.

2145454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354.

The product of its digits is 3200, while the sum is 25.

The square root of 2145454 is about 1464.7368364317. The cubic root of 2145454 is about 128.9752571578.

The spelling of 2145454 in words is "two million, one hundred forty-five thousand, four hundred fifty-four".