139417 has 8 divisors (see below), whose sum is σ = 151200. Its totient is φ = 128064.

The previous prime is 139409. The next prime is 139423. The reversal of 139417 is 714931.

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

It is a cyclic number.

It is not a de Polignac number, because 139417 - 2³ = 139409 is a prime.

It is an Ulam number.

It is a Duffinian number.

139417 is a modest number, since divided by 417 gives 139 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 139391 and 139400.

It is not an unprimeable number, because it can be changed into a prime (139457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 934 + ... + 1072.

It is an arithmetic number, because the mean of its divisors is an integer number (18900).

2¹³⁹⁴¹⁷ is an apocalyptic number.

139417 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

139417 is a deficient number, since it is larger than the sum of its proper divisors (11783).

139417 is a wasteful number, since it uses less digits than its factorization.

139417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215.

The product of its digits is 756, while the sum is 25.

The square root of 139417 is about 373.3858594002. The cubic root of 139417 is about 51.8527639736.

The spelling of 139417 in words is "one hundred thirty-nine thousand, four hundred seventeen".