9013381 has 4 divisors (see below), whose sum is σ = 9706732. Its totient is φ = 8320032.

The previous prime is 9013369. The next prime is 9013387. The reversal of 9013381 is 1833109.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1833109 = 1301 ⋅1409.

It can be written as a sum of positive squares in 2 ways, for example, as 2464900 + 6548481 = 1570^2 + 2559^2 .

It is a cyclic number.

It is not a de Polignac number, because 9013381 - 2⁹ = 9012869 is a prime.

It is a super-2 number, since 2×9013381² = 162482074102322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9013387) 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, 346656 + ... + 346681.

It is an arithmetic number, because the mean of its divisors is an integer number (2426683).

Almost surely, 2^9013381 is an apocalyptic number.

It is an amenable number.

9013381 is a deficient number, since it is larger than the sum of its proper divisors (693351).

9013381 is a wasteful number, since it uses less digits than its factorization.

9013381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693350.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 9013381 is about 3002.2293383418. The cubic root of 9013381 is about 208.1114186715. Note that the first 3 decimals are identical.

The spelling of 9013381 in words is "nine million, thirteen thousand, three hundred eighty-one".