139554218 has 16 divisors (see below), whose sum is σ = 211425984. Its totient is φ = 69082560.

The previous prime is 139554199. The next prime is 139554227. The reversal of 139554218 is 812455931.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 101858 + ... + 103218.

It is an arithmetic number, because the mean of its divisors is an integer number (13214124).

Almost surely, 2^139554218 is an apocalyptic number.

139554218 is a deficient number, since it is larger than the sum of its proper divisors (71871766).

139554218 is a wasteful number, since it uses less digits than its factorization.

139554218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837.

The product of its digits is 43200, while the sum is 38.

The square root of 139554218 is about 11813.3068190071. The cubic root of 139554218 is about 518.6977002870.

The spelling of 139554218 in words is "one hundred thirty-nine million, five hundred fifty-four thousand, two hundred eighteen".