9045381 has 4 divisors (see below), whose sum is σ = 12060512. Its totient is φ = 6030252.

The previous prime is 9045367. The next prime is 9045383. The reversal of 9045381 is 1835409.

9045381 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1835409 = 3 ⋅611803.

It is not a de Polignac number, because 9045381 - 2⁶ = 9045317 is a prime.

It is a super-2 number, since 2×9045381² = 163637834870322, 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 (9045383) 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, 1507561 + ... + 1507566.

It is an arithmetic number, because the mean of its divisors is an integer number (3015128).

Almost surely, 2^9045381 is an apocalyptic number.

It is an amenable number.

9045381 is a deficient number, since it is larger than the sum of its proper divisors (3015131).

9045381 is a wasteful number, since it uses less digits than its factorization.

9045381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3015130.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 9045381 is about 3007.5539895403. The cubic root of 9045381 is about 208.3574121858.

The spelling of 9045381 in words is "nine million, forty-five thousand, three hundred eighty-one".