9145949 has 8 divisors (see below), whose sum is σ = 9729720. Its totient is φ = 8567296.

The previous prime is 9145943. The next prime is 9145957. The reversal of 9145949 is 9495419.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2617924 + 6528025 = 1618^2 + 2555^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 9145949 - 2⁸ = 9145693 is a prime.

It is a super-2 number, since 2×9145949² = 167296766221202, 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 (9145943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2807 + ... + 5115.

It is an arithmetic number, because the mean of its divisors is an integer number (1216215).

Almost surely, 2^9145949 is an apocalyptic number.

It is an amenable number.

9145949 is a deficient number, since it is larger than the sum of its proper divisors (583771).

9145949 is a wasteful number, since it uses less digits than its factorization.

9145949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2559.

The product of its digits is 58320, while the sum is 41.

The square root of 9145949 is about 3024.2270086751. The cubic root of 9145949 is about 209.1267517119.

The spelling of 9145949 in words is "nine million, one hundred forty-five thousand, nine hundred forty-nine".