2150409 has 8 divisors (see below), whose sum is σ = 2937312. Its totient is φ = 1398560.

The previous prime is 2150399. The next prime is 2150411. The reversal of 2150409 is 9040512.

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 2150409 - 2⁹ = 2149897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2150419) 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, 8619 + ... + 8864.

It is an arithmetic number, because the mean of its divisors is an integer number (367164).

2^2150409 is an apocalyptic number.

It is an amenable number.

2150409 is a deficient number, since it is larger than the sum of its proper divisors (786903).

2150409 is a wasteful number, since it uses less digits than its factorization.

2150409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17527.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 2150409 is about 1466.4272910717. The cubic root of 2150409 is about 129.0744717519.

The spelling of 2150409 in words is "two million, one hundred fifty thousand, four hundred nine".