139580825 has 12 divisors (see below), whose sum is σ = 173379900. Its totient is φ = 111471360.

The previous prime is 139580809. The next prime is 139580827. The reversal of 139580825 is 528085931.

It can be written as a sum of positive squares in 6 ways, for example, as 9803161 + 129777664 = 3131^2 + 11392^2 .

It is not a de Polignac number, because 139580825 - 2⁴ = 139580809 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (139580827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10901 + ... + 19949.

It is an arithmetic number, because the mean of its divisors is an integer number (14448325).

Almost surely, 2^139580825 is an apocalyptic number.

It is an amenable number.

139580825 is a deficient number, since it is larger than the sum of its proper divisors (33799075).

139580825 is an equidigital number, since it uses as much as digits as its factorization.

139580825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9676 (or 9671 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 41.

The square root of 139580825 is about 11814.4329106394. The cubic root of 139580825 is about 518.7306626556.

The spelling of 139580825 in words is "one hundred thirty-nine million, five hundred eighty thousand, eight hundred twenty-five".