8135945 has 8 divisors (see below), whose sum is σ = 10337544. Its totient is φ = 6125824.

The previous prime is 8135927. The next prime is 8135947. The reversal of 8135945 is 5495318.

It can be written as a sum of positive squares in 4 ways, for example, as 273529 + 7862416 = 523^2 + 2804^2 .

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 8135945 - 2¹⁶ = 8070409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8135947) 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, 47774 + ... + 47943.

It is an arithmetic number, because the mean of its divisors is an integer number (1292193).

Almost surely, 2^8135945 is an apocalyptic number.

8135945 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8135945 is a deficient number, since it is larger than the sum of its proper divisors (2201599).

8135945 is a wasteful number, since it uses less digits than its factorization.

8135945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95739.

The product of its digits is 21600, while the sum is 35.

The square root of 8135945 is about 2852.3577966307. The cubic root of 8135945 is about 201.1265178741.

The spelling of 8135945 in words is "eight million, one hundred thirty-five thousand, nine hundred forty-five".