1395035181 has 12 divisors (see below), whose sum is σ = 2133583452. Its totient is φ = 875316096.

The previous prime is 1395035171. The next prime is 1395035189. The reversal of 1395035181 is 1815305931.

1395035181 is a `hidden beast` number, since 139 + 5 + 0 + 3 + 518 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 694586025 + 700449156 = 26355^2 + 26466^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1395035181 is a prime.

It is a super-2 number, since 2×1395035181² = 3892246312455405522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395035189) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4558786 + ... + 4559091.

It is an arithmetic number, because the mean of its divisors is an integer number (177798621).

Almost surely, 2^1395035181 is an apocalyptic number.

It is an amenable number.

1395035181 is a deficient number, since it is larger than the sum of its proper divisors (738548271).

1395035181 is a wasteful number, since it uses less digits than its factorization.

1395035181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9117900 (or 9117897 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The square root of 1395035181 is about 37350.1697586504. The cubic root of 1395035181 is about 1117.3649738512.

The spelling of 1395035181 in words is "one billion, three hundred ninety-five million, thirty-five thousand, one hundred eighty-one".