9138026 has 4 divisors (see below), whose sum is σ = 13707042. Its totient is φ = 4569012.

The previous prime is 9138007. The next prime is 9138029. The reversal of 9138026 is 6208319.

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

It can be written as a sum of positive squares in only one way, i.e., 6497401 + 2640625 = 2549^2 + 1625^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9138026.

It is not an unprimeable number, because it can be changed into a prime (9138029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2284505 + ... + 2284508.

Almost surely, 2^9138026 is an apocalyptic number.

9138026 is a deficient number, since it is larger than the sum of its proper divisors (4569016).

9138026 is a wasteful number, since it uses less digits than its factorization.

9138026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4569015.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 9138026 is about 3022.9168033540. The cubic root of 9138026 is about 209.0663464645.

The spelling of 9138026 in words is "nine million, one hundred thirty-eight thousand, twenty-six".