117256149 has 6 divisors (see below), whose sum is σ = 169370006. Its totient is φ = 78170760.

The previous prime is 117256121. The next prime is 117256151. The reversal of 117256149 is 941652711.

117256149 is a `hidden beast` number, since 1 + 17 + 25 + 614 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 64112049 + 53144100 = 8007^2 + 7290^2 .

It is not a de Polignac number, because 117256149 - 2¹² = 117252053 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 (117256109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6514222 + ... + 6514239.

Almost surely, 2^117256149 is an apocalyptic number.

It is an amenable number.

117256149 is a deficient number, since it is larger than the sum of its proper divisors (52113857).

117256149 is a wasteful number, since it uses less digits than its factorization.

117256149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13028467 (or 13028464 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 117256149 is about 10828.4878445700. The cubic root of 117256149 is about 489.4539926704.

The spelling of 117256149 in words is "one hundred seventeen million, two hundred fifty-six thousand, one hundred forty-nine".