139221058 has 16 divisors (see below), whose sum is σ = 222403320. Its totient is φ = 65134336.

The previous prime is 139220993. The next prime is 139221059. The reversal of 139221058 is 850122931.

It can be written as a sum of positive squares in 4 ways, for example, as 138227049 + 994009 = 11757^2 + 997^2 .

It is not an unprimeable number, because it can be changed into a prime (139221059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5953 + ... + 17716.

Almost surely, 2^139221058 is an apocalyptic number.

139221058 is a deficient number, since it is larger than the sum of its proper divisors (83182262).

139221058 is a wasteful number, since it uses less digits than its factorization.

139221058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23861.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 139221058 is about 11799.1973455825. The cubic root of 139221058 is about 518.2846062991.

Adding to 139221058 its reverse (850122931), we get a palindrome (989343989).

The spelling of 139221058 in words is "one hundred thirty-nine million, two hundred twenty-one thousand, fifty-eight".