2145458 has 8 divisors (see below), whose sum is σ = 3677952. Its totient is φ = 919476.

The previous prime is 2145443. The next prime is 2145469. The reversal of 2145458 is 8545412.

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

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

It is a self number, because there is not a number n which added to its sum of digits gives 2145458.

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, 76610 + ... + 76637.

It is an arithmetic number, because the mean of its divisors is an integer number (459744).

2^2145458 is an apocalyptic number.

2145458 is a deficient number, since it is larger than the sum of its proper divisors (1532494).

2145458 is a wasteful number, since it uses less digits than its factorization.

2145458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153256.

The product of its digits is 6400, while the sum is 29.

The square root of 2145458 is about 1464.7382018641. The cubic root of 2145458 is about 128.9753373119.

It can be divided in two parts, 21454 and 58, that added together give a palindrome (21512).

The spelling of 2145458 in words is "two million, one hundred forty-five thousand, four hundred fifty-eight".