139363927 has 4 divisors (see below), whose sum is σ = 139393440. Its totient is φ = 139334416.

The previous prime is 139363921. The next prime is 139363933. The reversal of 139363927 is 729363931.

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

It is an interprime number because it is at equal distance from previous prime (139363921) and next prime (139363933).

It is a 4-Lehmer number, since φ(139363927) divides (139363927-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 139363927 - 2¹¹ = 139361879 is a prime.

It is a super-2 number, since 2×139363927² = 38844608297722658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139363921) 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 3 ways as a sum of consecutive naturals, for example, 5902 + ... + 17707.

It is an arithmetic number, because the mean of its divisors is an integer number (34848360).

It is a Poulet number, since it divides 2^139363926-1.

Almost surely, 2^139363927 is an apocalyptic number.

139363927 is the 5903-rd decagonal number.

139363927 is a deficient number, since it is larger than the sum of its proper divisors (29513).

139363927 is an equidigital number, since it uses as much as digits as its factorization.

139363927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29512.

The product of its digits is 183708, while the sum is 43.

The square root of 139363927 is about 11805.2499761759. The cubic root of 139363927 is about 518.4618340114.

The spelling of 139363927 in words is "one hundred thirty-nine million, three hundred sixty-three thousand, nine hundred twenty-seven".