116281857 has 4 divisors (see below), whose sum is σ = 155042480. Its totient is φ = 77521236.

The previous prime is 116281831. The next prime is 116281873. The reversal of 116281857 is 758182611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 758182611 = 3 ⋅252727537.

It is not a de Polignac number, because 116281857 - 2¹² = 116277761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116281817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19380307 + ... + 19380312.

It is an arithmetic number, because the mean of its divisors is an integer number (38760620).

Almost surely, 2^116281857 is an apocalyptic number.

It is an amenable number.

116281857 is a deficient number, since it is larger than the sum of its proper divisors (38760623).

116281857 is an equidigital number, since it uses as much as digits as its factorization.

116281857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38760622.

The product of its digits is 26880, while the sum is 39.

The square root of 116281857 is about 10783.4065582264. The cubic root of 116281857 is about 488.0945812936.

The spelling of 116281857 in words is "one hundred sixteen million, two hundred eighty-one thousand, eight hundred fifty-seven".