1380542125 has 8 divisors (see below), whose sum is σ = 1722916728. Its totient is φ = 1104433600.

The previous prime is 1380542117. The next prime is 1380542161. The reversal of 1380542125 is 5212450831.

It can be written as a sum of positive squares in 4 ways, for example, as 13169641 + 1367372484 = 3629^2 + 36978^2 .

It is not a de Polignac number, because 1380542125 - 2³ = 1380542117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5522044 + ... + 5522293.

It is an arithmetic number, because the mean of its divisors is an integer number (215364591).

Almost surely, 2^1380542125 is an apocalyptic number.

It is an amenable number.

1380542125 is a deficient number, since it is larger than the sum of its proper divisors (342374603).

1380542125 is an equidigital number, since it uses as much as digits as its factorization.

1380542125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11044352 (or 11044342 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 1380542125 is about 37155.6472827483. The cubic root of 1380542125 is about 1113.4820516690.

Adding to 1380542125 its reverse (5212450831), we get a palindrome (6592992956).

The spelling of 1380542125 in words is "one billion, three hundred eighty million, five hundred forty-two thousand, one hundred twenty-five".