6115409 has 4 divisors (see below), whose sum is σ = 6219120. Its totient is φ = 6011700.

The previous prime is 6115399. The next prime is 6115411. The reversal of 6115409 is 9045116.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6115409 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6115489) 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, 51767 + ... + 51884.

It is an arithmetic number, because the mean of its divisors is an integer number (1554780).

Almost surely, 2^6115409 is an apocalyptic number.

It is an amenable number.

6115409 is a deficient number, since it is larger than the sum of its proper divisors (103711).

6115409 is a wasteful number, since it uses less digits than its factorization.

6115409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103710.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 6115409 is about 2472.9353004072. The cubic root of 6115409 is about 182.8697351994.

The spelling of 6115409 in words is "six million, one hundred fifteen thousand, four hundred nine".