2045146 has 4 divisors (see below), whose sum is σ = 3067722. Its totient is φ = 1022572.

The previous prime is 2045129. The next prime is 2045177. The reversal of 2045146 is 6415402.

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

It can be written as a sum of positive squares in only one way, i.e., 1347921 + 697225 = 1161^2 + 835^2 .

It is a super-2 number, since 2×2045146² = 8365244322632, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511285 + ... + 511288.

2^2045146 is an apocalyptic number.

2045146 is a deficient number, since it is larger than the sum of its proper divisors (1022576).

2045146 is a wasteful number, since it uses less digits than its factorization.

2045146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022575.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2045146 is about 1430.0860113993. The cubic root of 2045146 is about 126.9330665962.

The spelling of 2045146 in words is "two million, forty-five thousand, one hundred forty-six".