5126409 has 20 divisors (see below), whose sum is σ = 8063440. Its totient is φ = 3236760.

The previous prime is 5126393. The next prime is 5126411. The reversal of 5126409 is 9046215.

5126409 is a `hidden beast` number, since 5 + 12 + 640 + 9 = 666.

It is not a de Polignac number, because 5126409 - 2⁴ = 5126393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

5126409 is a lucky number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (5126419) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 127 + ... + 3204.

It is an arithmetic number, because the mean of its divisors is an integer number (403172).

Almost surely, 2^5126409 is an apocalyptic number.

It is an amenable number.

5126409 is a deficient number, since it is larger than the sum of its proper divisors (2937031).

5126409 is a wasteful number, since it uses less digits than its factorization.

5126409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3362 (or 3353 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 5126409 is about 2264.1574591887. The cubic root of 5126409 is about 172.4266606953.

The spelling of 5126409 in words is "five million, one hundred twenty-six thousand, four hundred nine".