1395989245 has 8 divisors (see below), whose sum is σ = 1914499584. Its totient is φ = 957249744.

The previous prime is 1395989233. The next prime is 1395989249. The reversal of 1395989245 is 5429895931.

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 1395989245 - 2¹⁵ = 1395956477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395989249) 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, 19942669 + ... + 19942738.

It is an arithmetic number, because the mean of its divisors is an integer number (239312448).

Almost surely, 2^1395989245 is an apocalyptic number.

It is an amenable number.

1395989245 is a deficient number, since it is larger than the sum of its proper divisors (518510339).

1395989245 is an equidigital number, since it uses as much as digits as its factorization.

1395989245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39885419.

The product of its digits is 3499200, while the sum is 55.

The square root of 1395989245 is about 37362.9394587739. The cubic root of 1395989245 is about 1117.6196376242.

The spelling of 1395989245 in words is "one billion, three hundred ninety-five million, nine hundred eighty-nine thousand, two hundred forty-five".