139144102 has 8 divisors (see below), whose sum is σ = 208774800. Its totient is φ = 69552504.

The previous prime is 139144069. The next prime is 139144147. The reversal of 139144102 is 201441931.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×139144102² = 38722162242772808, which contains 22 as substring.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 1924 + ... + 16792.

It is an arithmetic number, because the mean of its divisors is an integer number (26096850).

Almost surely, 2^139144102 is an apocalyptic number.

139144102 is a deficient number, since it is larger than the sum of its proper divisors (69630698).

139144102 is a wasteful number, since it uses less digits than its factorization.

139144102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19550.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 139144102 is about 11795.9358255291. The cubic root of 139144102 is about 518.1890928234.

The spelling of 139144102 in words is "one hundred thirty-nine million, one hundred forty-four thousand, one hundred two".