1395733247 has 4 divisors (see below), whose sum is σ = 1395823800. Its totient is φ = 1395642696.

The previous prime is 1395733237. The next prime is 1395733279. The reversal of 1395733247 is 7423375931.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1395733247 - 2⁴ = 1395733231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1395733198 and 1395733207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395733237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15728 + ... + 55125.

It is an arithmetic number, because the mean of its divisors is an integer number (348955950).

Almost surely, 2^1395733247 is an apocalyptic number.

1395733247 is a deficient number, since it is larger than the sum of its proper divisors (90553).

1395733247 is an equidigital number, since it uses as much as digits as its factorization.

1395733247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90552.

The product of its digits is 476280, while the sum is 44.

The square root of 1395733247 is about 37359.5134738128. The cubic root of 1395733247 is about 1117.5513166865.

The spelling of 1395733247 in words is "one billion, three hundred ninety-five million, seven hundred thirty-three thousand, two hundred forty-seven".