1383071825 has 6 divisors (see below), whose sum is σ = 1715009094. Its totient is φ = 1106457440.

The previous prime is 1383071801. The next prime is 1383071827. The reversal of 1383071825 is 5281703831.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 90022144 + 1293049681 = 9488^2 + 35959^2 .

It is not a de Polignac number, because 1383071825 - 2⁶ = 1383071761 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1383071827) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27661412 + ... + 27661461.

It is an arithmetic number, because the mean of its divisors is an integer number (285834849).

Almost surely, 2^1383071825 is an apocalyptic number.

It is an amenable number.

1383071825 is a deficient number, since it is larger than the sum of its proper divisors (331937269).

1383071825 is an equidigital number, since it uses as much as digits as its factorization.

1383071825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55322883 (or 55322878 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 1383071825 is about 37189.6736339538. The cubic root of 1383071825 is about 1114.1617500671.

The spelling of 1383071825 in words is "one billion, three hundred eighty-three million, seventy-one thousand, eight hundred twenty-five".