10148809 has 4 divisors (see below), whose sum is σ = 11071440. Its totient is φ = 9226180.

The previous prime is 10148797. The next prime is 10148821. The reversal of 10148809 is 90884101.

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 an interprime number because it is at equal distance from previous prime (10148797) and next prime (10148821).

It is a cyclic number.

It is not a de Polignac number, because 10148809 - 2⁵ = 10148777 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10148839) 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, 461299 + ... + 461320.

It is an arithmetic number, because the mean of its divisors is an integer number (2767860).

Almost surely, 2^10148809 is an apocalyptic number.

It is an amenable number.

10148809 is a deficient number, since it is larger than the sum of its proper divisors (922631).

10148809 is an equidigital number, since it uses as much as digits as its factorization.

10148809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922630.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 10148809 is about 3185.7195419559. The cubic root of 10148809 is about 216.5068757406.

The spelling of 10148809 in words is "ten million, one hundred forty-eight thousand, eight hundred nine".