2045105626 has 4 divisors (see below), whose sum is σ = 3067658442. Its totient is φ = 1022552812.

The previous prime is 2045105597. The next prime is 2045105639. The reversal of 2045105626 is 6265015402.

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., 1612424025 + 432681601 = 40155^2 + 20801^2 .

It is a super-5 number, since 5×2045105626⁵ (a number of 48 digits) contains 55555 as substring.

It is a Smith number, since the sum of its digits (31) 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 polite number, since it can be written as a sum of consecutive naturals, namely, 511276405 + ... + 511276408.

Almost surely, 2^2045105626 is an apocalyptic number.

2045105626 is a deficient number, since it is larger than the sum of its proper divisors (1022552816).

2045105626 is a wasteful number, since it uses less digits than its factorization.

2045105626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022552815.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 2045105626 is about 45222.8440724375. The cubic root of 2045105626 is about 1269.3223131280.

The spelling of 2045105626 in words is "two billion, forty-five million, one hundred five thousand, six hundred twenty-six".