139542126 has 8 divisors (see below), whose sum is σ = 279084264. Its totient is φ = 46514040.

The previous prime is 139542097. The next prime is 139542157. The reversal of 139542126 is 621245931.

139542126 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

139542126 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11628505 + ... + 11628516.

It is an arithmetic number, because the mean of its divisors is an integer number (34885533).

Almost surely, 2^139542126 is an apocalyptic number.

139542126 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139542126 is a wasteful number, since it uses less digits than its factorization.

139542126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23257026.

The product of its digits is 12960, while the sum is 33.

The square root of 139542126 is about 11812.7950121891. The cubic root of 139542126 is about 518.6827185978.

The spelling of 139542126 in words is "one hundred thirty-nine million, five hundred forty-two thousand, one hundred twenty-six".