1395623481 has 8 divisors (see below), whose sum is σ = 2126664384. Its totient is φ = 797499120.

The previous prime is 1395623479. The next prime is 1395623491. The reversal of 1395623481 is 1843265931.

1395623481 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1395623481 - 2¹ = 1395623479 is a prime.

It is a super-2 number, since 2×1395623481² = 3895529801437114722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1395623431) 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, 33229110 + ... + 33229151.

It is an arithmetic number, because the mean of its divisors is an integer number (265833048).

Almost surely, 2^1395623481 is an apocalyptic number.

It is an amenable number.

1395623481 is a deficient number, since it is larger than the sum of its proper divisors (731040903).

1395623481 is an equidigital number, since it uses as much as digits as its factorization.

1395623481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66458271.

The product of its digits is 155520, while the sum is 42.

The square root of 1395623481 is about 37358.0443947485. The cubic root of 1395623481 is about 1117.5220196953.

The spelling of 1395623481 in words is "one billion, three hundred ninety-five million, six hundred twenty-three thousand, four hundred eighty-one".