391196041 has 4 divisors (see below), whose sum is σ = 391449492. Its totient is φ = 390942592.

The previous prime is 391196033. The next prime is 391196089. The reversal of 391196041 is 140691193.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 140691193 = 61 ⋅2306413.

It can be written as a sum of positive squares in 2 ways, for example, as 177422400 + 213773641 = 13320^2 + 14621^2 .

It is a cyclic number.

It is not a de Polignac number, because 391196041 - 2³ = 391196033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 391195988 and 391196006.

It is not an unprimeable number, because it can be changed into a prime (391199041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124396 + ... + 127501.

It is an arithmetic number, because the mean of its divisors is an integer number (97862373).

Almost surely, 2^391196041 is an apocalyptic number.

It is an amenable number.

391196041 is a deficient number, since it is larger than the sum of its proper divisors (253451).

391196041 is a wasteful number, since it uses less digits than its factorization.

391196041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253450.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 391196041 is about 19778.6764218438. The cubic root of 391196041 is about 731.3604710399.

The spelling of 391196041 in words is "three hundred ninety-one million, one hundred ninety-six thousand, forty-one".