1395152545 has 4 divisors (see below), whose sum is σ = 1674183060. Its totient is φ = 1116122032.

The previous prime is 1395152509. The next prime is 1395152557. The reversal of 1395152545 is 5452515931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5452515931 = 79 ⋅69019189.

It can be written as a sum of positive squares in 2 ways, for example, as 679697041 + 715455504 = 26071^2 + 26748^2 .

It is a cyclic number.

It is not a de Polignac number, because 1395152545 - 2¹³ = 1395144353 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1395152498 and 1395152507.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 139515250 + ... + 139515259.

It is an arithmetic number, because the mean of its divisors is an integer number (418545765).

Almost surely, 2^1395152545 is an apocalyptic number.

It is an amenable number.

1395152545 is a deficient number, since it is larger than the sum of its proper divisors (279030515).

1395152545 is an equidigital number, since it uses as much as digits as its factorization.

1395152545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279030514.

The product of its digits is 135000, while the sum is 40.

The square root of 1395152545 is about 37351.7408563510. The cubic root of 1395152545 is about 1117.3963075283.

The spelling of 1395152545 in words is "one billion, three hundred ninety-five million, one hundred fifty-two thousand, five hundred forty-five".