2045194499 has 16 divisors (see below), whose sum is σ = 2145173568. Its totient is φ = 1947981312.

The previous prime is 2045194427. The next prime is 2045194507. The reversal of 2045194499 is 9944915402.

It is a cyclic number.

It is not a de Polignac number, because 2045194499 - 2⁸ = 2045194243 is a prime.

It is a super-3 number, since 3×2045194499³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2045194199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367274 + ... + 372800.

It is an arithmetic number, because the mean of its divisors is an integer number (134073348).

Almost surely, 2^2045194499 is an apocalyptic number.

2045194499 is a deficient number, since it is larger than the sum of its proper divisors (99979069).

2045194499 is a wasteful number, since it uses less digits than its factorization.

2045194499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5774.

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 2045194499 is about 45223.8266735578. The cubic root of 2045194499 is about 1269.3406996026.

The spelling of 2045194499 in words is "two billion, forty-five million, one hundred ninety-four thousand, four hundred ninety-nine".