117532251 has 12 divisors (see below), whose sum is σ = 170004640. Its totient is φ = 78246000.

The previous prime is 117532213. The next prime is 117532267. The reversal of 117532251 is 152235711.

It is not a de Polignac number, because 117532251 - 2¹³ = 117524059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117532211) 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 11 ways as a sum of consecutive naturals, for example, 1936 + ... + 15453.

Almost surely, 2^117532251 is an apocalyptic number.

117532251 is a deficient number, since it is larger than the sum of its proper divisors (52472389).

117532251 is a wasteful number, since it uses less digits than its factorization.

117532251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18146 (or 18143 counting only the distinct ones).

The product of its digits is 2100, while the sum is 27.

The square root of 117532251 is about 10841.2292199732. The cubic root of 117532251 is about 489.8378625018.

Adding to 117532251 its reverse (152235711), we get a palindrome (269767962).

The spelling of 117532251 in words is "one hundred seventeen million, five hundred thirty-two thousand, two hundred fifty-one".