139025089 has 4 divisors (see below), whose sum is σ = 158885824. Its totient is φ = 119164356.

The previous prime is 139025077. The next prime is 139025119. The reversal of 139025089 is 980520931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 139025089 - 2⁵ = 139025057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139025059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9930357 + ... + 9930370.

It is an arithmetic number, because the mean of its divisors is an integer number (39721456).

Almost surely, 2^139025089 is an apocalyptic number.

It is an amenable number.

139025089 is a deficient number, since it is larger than the sum of its proper divisors (19860735).

139025089 is an equidigital number, since it uses as much as digits as its factorization.

139025089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19860734.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 139025089 is about 11790.8900851462. The cubic root of 139025089 is about 518.0413111858.

The spelling of 139025089 in words is "one hundred thirty-nine million, twenty-five thousand, eighty-nine".