1339926025 has 9 divisors (see below), whose sum is σ = 1661735253. Its totient is φ = 1071794400.

The previous prime is 1339926017. The next prime is 1339926041. The reversal of 1339926025 is 5206299331.

The square root of 1339926025 is 36605.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 836192889 + 503733136 = 28917^2 + 22444^2 .

It is not a de Polignac number, because 1339926025 - 2³ = 1339926017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 179365 + ... + 186685.

Almost surely, 2^1339926025 is an apocalyptic number.

1339926025 is the 36605-th square number.

1339926025 is the 18303-rd centered octagonal number.

It is an amenable number.

1339926025 is a deficient number, since it is larger than the sum of its proper divisors (321809228).

1339926025 is an frugal number, since it uses more digits than its factorization.

1339926025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14652 (or 7326 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 40.

The cubic root of 1339926025 is about 1102.4534836393.

The spelling of 1339926025 in words is "one billion, three hundred thirty-nine million, nine hundred twenty-six thousand, twenty-five".