139223158 has 4 divisors (see below), whose sum is σ = 208834740. Its totient is φ = 69611578.

The previous prime is 139223153. The next prime is 139223159. The reversal of 139223158 is 851322931.

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 (139223153) 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 as a sum of consecutive naturals, namely, 34805788 + ... + 34805791.

It is an arithmetic number, because the mean of its divisors is an integer number (52208685).

Almost surely, 2^139223158 is an apocalyptic number.

139223158 is a deficient number, since it is larger than the sum of its proper divisors (69611582).

139223158 is an equidigital number, since it uses as much as digits as its factorization.

139223158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69611581.

The product of its digits is 12960, while the sum is 34.

The square root of 139223158 is about 11799.2863343509. The cubic root of 139223158 is about 518.2872122080.

The spelling of 139223158 in words is "one hundred thirty-nine million, two hundred twenty-three thousand, one hundred fifty-eight".