409158109 has 8 divisors (see below), whose sum is σ = 427976640. Its totient is φ = 390425376.

The previous prime is 409158089. The next prime is 409158121. The reversal of 409158109 is 901851904.

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 409158109 - 2⁷ = 409157981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409158149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11592 + ... + 30865.

It is an arithmetic number, because the mean of its divisors is an integer number (53497080).

Almost surely, 2^409158109 is an apocalyptic number.

It is an amenable number.

409158109 is a deficient number, since it is larger than the sum of its proper divisors (18818531).

409158109 is a wasteful number, since it uses less digits than its factorization.

409158109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42899.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 409158109 is about 20227.6570318957. The cubic root of 409158109 is about 742.3870500493.

The spelling of 409158109 in words is "four hundred nine million, one hundred fifty-eight thousand, one hundred nine".