1395120538 has 16 divisors (see below), whose sum is σ = 2532320064. Its totient is φ = 562737600.

The previous prime is 1395120511. The next prime is 1395120541. The reversal of 1395120538 is 8350215931.

It is a happy number.

It is a super-2 number, since 2×1395120538² = 3892722631098818888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1395120497 and 1395120506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2930688 + ... + 2931163.

It is an arithmetic number, because the mean of its divisors is an integer number (158270004).

Almost surely, 2^1395120538 is an apocalyptic number.

1395120538 is a deficient number, since it is larger than the sum of its proper divisors (1137199526).

1395120538 is a wasteful number, since it uses less digits than its factorization.

1395120538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5861877.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 1395120538 is about 37351.3123999680. The cubic root of 1395120538 is about 1117.3877625183.

The spelling of 1395120538 in words is "one billion, three hundred ninety-five million, one hundred twenty thousand, five hundred thirty-eight".