409174961 has 4 divisors (see below), whose sum is σ = 440649972. Its totient is φ = 377699952.

The previous prime is 409174943. The next prime is 409174967. The reversal of 409174961 is 169471904.

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 152374336 + 256800625 = 12344^2 + 16025^2 .

It is a cyclic number.

It is not a de Polignac number, because 409174961 - 2¹⁰ = 409173937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (409174967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15737486 + ... + 15737511.

It is an arithmetic number, because the mean of its divisors is an integer number (110162493).

Almost surely, 2^409174961 is an apocalyptic number.

It is an amenable number.

409174961 is a deficient number, since it is larger than the sum of its proper divisors (31475011).

409174961 is a wasteful number, since it uses less digits than its factorization.

409174961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31475010.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 409174961 is about 20228.0735859844. The cubic root of 409174961 is about 742.3972421442.

The spelling of 409174961 in words is "four hundred nine million, one hundred seventy-four thousand, nine hundred sixty-one".