117851525 has 12 divisors (see below), whose sum is σ = 159421344. Its totient is φ = 85710000.

The previous prime is 117851479. The next prime is 117851533. The reversal of 117851525 is 525158711.

It is a de Polignac number, because none of the positive numbers 2^k-117851525 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214001 + ... + 214550.

It is an arithmetic number, because the mean of its divisors is an integer number (13285112).

Almost surely, 2^117851525 is an apocalyptic number.

It is an amenable number.

117851525 is a deficient number, since it is larger than the sum of its proper divisors (41569819).

117851525 is a wasteful number, since it uses less digits than its factorization.

117851525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428572 (or 428567 counting only the distinct ones).

The product of its digits is 14000, while the sum is 35.

The square root of 117851525 is about 10855.9442242488. The cubic root of 117851525 is about 490.2810063860.

The spelling of 117851525 in words is "one hundred seventeen million, eight hundred fifty-one thousand, five hundred twenty-five".