117135421 has 12 divisors (see below), whose sum is σ = 129546432. Its totient is φ = 105817296.

The previous prime is 117135419. The next prime is 117135463. The reversal of 117135421 is 124531711.

It is not a de Polignac number, because 117135421 - 2¹ = 117135419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117135521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 570 + ... + 15316.

It is an arithmetic number, because the mean of its divisors is an integer number (10795536).

Almost surely, 2^117135421 is an apocalyptic number.

It is an amenable number.

117135421 is a deficient number, since it is larger than the sum of its proper divisors (12411011).

117135421 is a wasteful number, since it uses less digits than its factorization.

117135421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14820 (or 14807 counting only the distinct ones).

The product of its digits is 840, while the sum is 25.

The square root of 117135421 is about 10822.9118540252. The cubic root of 117135421 is about 489.2859528878.

The spelling of 117135421 in words is "one hundred seventeen million, one hundred thirty-five thousand, four hundred twenty-one".