2161454 has 8 divisors (see below), whose sum is σ = 3278880. Its totient is φ = 1068496.

The previous prime is 2161447. The next prime is 2161469. The reversal of 2161454 is 4541612.

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

It is an Ulam number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5894 + ... + 6249.

It is an arithmetic number, because the mean of its divisors is an integer number (409860).

2^2161454 is an apocalyptic number.

2161454 is a deficient number, since it is larger than the sum of its proper divisors (1117426).

2161454 is a wasteful number, since it uses less digits than its factorization.

2161454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12234.

The product of its digits is 960, while the sum is 23.

The square root of 2161454 is about 1470.1884232982. The cubic root of 2161454 is about 129.2950799705.

The spelling of 2161454 in words is "two million, one hundred sixty-one thousand, four hundred fifty-four".