10158889 has 4 divisors (see below), whose sum is σ = 10940356. Its totient is φ = 9377424.

The previous prime is 10158887. The next prime is 10158913. The reversal of 10158889 is 98885101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6579225 + 3579664 = 2565^2 + 1892^2 .

It is a cyclic number.

It is not a de Polignac number, because 10158889 - 2¹ = 10158887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10158887) 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, 390714 + ... + 390739.

It is an arithmetic number, because the mean of its divisors is an integer number (2735089).

Almost surely, 2^10158889 is an apocalyptic number.

It is an amenable number.

10158889 is a deficient number, since it is larger than the sum of its proper divisors (781467).

10158889 is an equidigital number, since it uses as much as digits as its factorization.

10158889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781466.

The product of its (nonzero) digits is 23040, while the sum is 40.

The square root of 10158889 is about 3187.3012094874. The cubic root of 10158889 is about 216.5785316750.

The spelling of 10158889 in words is "ten million, one hundred fifty-eight thousand, eight hundred eighty-nine".