9137481 has 8 divisors (see below), whose sum is σ = 12211584. Its totient is φ = 6077520.

The previous prime is 9137473. The next prime is 9137501. The reversal of 9137481 is 1847319.

9137481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9137481 - 2³ = 9137473 is a prime.

It is a super-2 number, since 2×9137481² = 166987118050722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

9137481 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9137441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1921 + ... + 4686.

It is an arithmetic number, because the mean of its divisors is an integer number (1526448).

Almost surely, 2^9137481 is an apocalyptic number.

It is an amenable number.

9137481 is a deficient number, since it is larger than the sum of its proper divisors (3074103).

9137481 is a wasteful number, since it uses less digits than its factorization.

9137481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7071.

The product of its digits is 6048, while the sum is 33.

The square root of 9137481 is about 3022.8266572862. The cubic root of 9137481 is about 209.0621900809.

The spelling of 9137481 in words is "nine million, one hundred thirty-seven thousand, four hundred eighty-one".