139261102 has 4 divisors (see below), whose sum is σ = 208891656. Its totient is φ = 69630550.

The previous prime is 139261099. The next prime is 139261117. The reversal of 139261102 is 201162931.

139261102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34815274 + ... + 34815277.

It is an arithmetic number, because the mean of its divisors is an integer number (52222914).

Almost surely, 2^139261102 is an apocalyptic number.

139261102 is a deficient number, since it is larger than the sum of its proper divisors (69630554).

139261102 is an equidigital number, since it uses as much as digits as its factorization.

139261102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69630553.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 139261102 is about 11800.8941186674. The cubic root of 139261102 is about 518.3342927463.

The spelling of 139261102 in words is "one hundred thirty-nine million, two hundred sixty-one thousand, one hundred two".