2045621146 has 16 divisors (see below), whose sum is σ = 3179263464. Its totient is φ = 986356224.

The previous prime is 2045621141. The next prime is 2045621167. The reversal of 2045621146 is 6411265402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1052678025 + 992943121 = 32445^2 + 31511^2 .

It is not an unprimeable number, because it can be changed into a prime (2045621141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113955 + ... + 130678.

Almost surely, 2^2045621146 is an apocalyptic number.

2045621146 is a deficient number, since it is larger than the sum of its proper divisors (1133642318).

2045621146 is a wasteful number, since it uses less digits than its factorization.

2045621146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244785.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 2045621146 is about 45228.5434874925. The cubic root of 2045621146 is about 1269.4289589748.

Adding to 2045621146 its reverse (6411265402), we get a palindrome (8456886548).

The spelling of 2045621146 in words is "two billion, forty-five million, six hundred twenty-one thousand, one hundred forty-six".