1799253145 has 8 divisors (see below), whose sum is σ = 2167506504. Its totient is φ = 1433800704.

The previous prime is 1799253121. The next prime is 1799253151. The reversal of 1799253145 is 5413529971.

It can be written as a sum of positive squares in 4 ways, for example, as 748131904 + 1051121241 = 27352^2 + 32421^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1799253145 - 2⁷ = 1799253017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1799253095 and 1799253104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 698814 + ... + 701383.

It is an arithmetic number, because the mean of its divisors is an integer number (270938313).

Almost surely, 2^1799253145 is an apocalyptic number.

It is an amenable number.

1799253145 is a deficient number, since it is larger than the sum of its proper divisors (368253359).

1799253145 is a wasteful number, since it uses less digits than its factorization.

1799253145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400459.

The product of its digits is 340200, while the sum is 46.

The square root of 1799253145 is about 42417.6041874126. The cubic root of 1799253145 is about 1216.2721342489.

The spelling of 1799253145 in words is "one billion, seven hundred ninety-nine million, two hundred fifty-three thousand, one hundred forty-five".