139659214 has 4 divisors (see below), whose sum is σ = 209488824. Its totient is φ = 69829606.

The previous prime is 139659211. The next prime is 139659251. The reversal of 139659214 is 412956931.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139659211) 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 as a sum of consecutive naturals, namely, 34914802 + ... + 34914805.

It is an arithmetic number, because the mean of its divisors is an integer number (52372206).

Almost surely, 2^139659214 is an apocalyptic number.

139659214 is a deficient number, since it is larger than the sum of its proper divisors (69829610).

139659214 is an equidigital number, since it uses as much as digits as its factorization.

139659214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69829609.

The product of its digits is 58320, while the sum is 40.

The square root of 139659214 is about 11817.7499550464. The cubic root of 139659214 is about 518.8277513691.

The spelling of 139659214 in words is "one hundred thirty-nine million, six hundred fifty-nine thousand, two hundred fourteen".