10158409 has 4 divisors (see below), whose sum is σ = 10175440. Its totient is φ = 10141380.

The previous prime is 10158403. The next prime is 10158419. The reversal of 10158409 is 90485101.

It is a happy number.

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 not a de Polignac number, because 10158409 - 2⁹ = 10157897 is a prime.

It is a super-2 number, since 2×10158409² = 206386546822562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10158403) 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, 7587 + ... + 8824.

It is an arithmetic number, because the mean of its divisors is an integer number (2543860).

Almost surely, 2^10158409 is an apocalyptic number.

It is an amenable number.

10158409 is a deficient number, since it is larger than the sum of its proper divisors (17031).

10158409 is an equidigital number, since it uses as much as digits as its factorization.

10158409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17030.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 10158409 is about 3187.2259097842. The cubic root of 10158409 is about 216.5751205627.

Subtracting from 10158409 its product of nonzero digits (1440), we obtain a square (10156969 = 3187²).

The spelling of 10158409 in words is "ten million, one hundred fifty-eight thousand, four hundred nine".