1395953473 has 4 divisors (see below), whose sum is σ = 1396045908. Its totient is φ = 1395861040.

The previous prime is 1395953443. The next prime is 1395953479. The reversal of 1395953473 is 3743595931.

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 can be written as a sum of positive squares in 2 ways, for example, as 17539344 + 1378414129 = 4188^2 + 37127^2 .

It is a cyclic number.

It is not a de Polignac number, because 1395953473 - 2⁵ = 1395953441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1395953479) 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, 17698 + ... + 55723.

It is an arithmetic number, because the mean of its divisors is an integer number (349011477).

Almost surely, 2^1395953473 is an apocalyptic number.

It is an amenable number.

1395953473 is a deficient number, since it is larger than the sum of its proper divisors (92435).

1395953473 is an equidigital number, since it uses as much as digits as its factorization.

1395953473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92434.

The product of its digits is 1530900, while the sum is 49.

The square root of 1395953473 is about 37362.4607460483. The cubic root of 1395953473 is about 1117.6100912681.

The spelling of 1395953473 in words is "one billion, three hundred ninety-five million, nine hundred fifty-three thousand, four hundred seventy-three".