117190251 has 6 divisors (see below), whose sum is σ = 169274820. Its totient is φ = 78126828.

The previous prime is 117190243. The next prime is 117190253. The reversal of 117190251 is 152091711.

It is not a de Polignac number, because 117190251 - 2³ = 117190243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117190253) 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 5 ways as a sum of consecutive naturals, for example, 6510561 + ... + 6510578.

It is an arithmetic number, because the mean of its divisors is an integer number (28212470).

Almost surely, 2^117190251 is an apocalyptic number.

117190251 is a deficient number, since it is larger than the sum of its proper divisors (52084569).

117190251 is a wasteful number, since it uses less digits than its factorization.

117190251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13021145 (or 13021142 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 27.

The square root of 117190251 is about 10825.4446098070. Note that the first 3 decimals coincide. The cubic root of 117190251 is about 489.3622843787.

The spelling of 117190251 in words is "one hundred seventeen million, one hundred ninety thousand, two hundred fifty-one".