117561250 has 20 divisors (see below), whose sum is σ = 220359150. Its totient is φ = 47024000.

The previous prime is 117561209. The next prime is 117561253. The reversal of 117561250 is 52165711.

It can be written as a sum of positive squares in 5 ways, for example, as 17581249 + 99980001 = 4193^2 + 9999^2 .

It is not an unprimeable number, because it can be changed into a prime (117561253) 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 9 ways as a sum of consecutive naturals, for example, 45775 + ... + 48274.

Almost surely, 2^117561250 is an apocalyptic number.

117561250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117561250 is a deficient number, since it is larger than the sum of its proper divisors (102797900).

117561250 is an frugal number, since it uses more digits than its factorization.

117561250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94071 (or 94056 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 117561250 is about 10842.5665780755. The cubic root of 117561250 is about 489.8781454595.

The spelling of 117561250 in words is "one hundred seventeen million, five hundred sixty-one thousand, two hundred fifty".