139254117 has 8 divisors (see below), whose sum is σ = 187758720. Its totient is φ = 91792800.

The previous prime is 139254079. The next prime is 139254127. The reversal of 139254117 is 711452931.

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

It is not a de Polignac number, because 139254117 - 2¹² = 139250021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139254127) by changing a digit.

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, 260509 + ... + 261042.

It is an arithmetic number, because the mean of its divisors is an integer number (23469840).

Almost surely, 2^139254117 is an apocalyptic number.

It is an amenable number.

139254117 is a deficient number, since it is larger than the sum of its proper divisors (48504603).

139254117 is an equidigital number, since it uses as much as digits as its factorization.

139254117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521643.

The product of its digits is 7560, while the sum is 33.

The square root of 139254117 is about 11800.5981628051. The cubic root of 139254117 is about 518.3256264700.

The spelling of 139254117 in words is "one hundred thirty-nine million, two hundred fifty-four thousand, one hundred seventeen".