794781145 has 4 divisors (see below), whose sum is σ = 953737380. Its totient is φ = 635824912.

The previous prime is 794781121. The next prime is 794781151. The reversal of 794781145 is 541187497.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 162409536 + 632371609 = 12744^2 + 25147^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-794781145 is a prime.

It is a super-2 number, since 2×794781145² = 1263354136895022050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 794781095 and 794781104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79478110 + ... + 79478119.

It is an arithmetic number, because the mean of its divisors is an integer number (238434345).

Almost surely, 2^794781145 is an apocalyptic number.

It is an amenable number.

794781145 is a deficient number, since it is larger than the sum of its proper divisors (158956235).

794781145 is a wasteful number, since it uses less digits than its factorization.

794781145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158956234.

The product of its digits is 282240, while the sum is 46.

The square root of 794781145 is about 28191.8630991284. The cubic root of 794781145 is about 926.2947128897.

The spelling of 794781145 in words is "seven hundred ninety-four million, seven hundred eighty-one thousand, one hundred forty-five".