114991897 has 4 divisors (see below), whose sum is σ = 115032960. Its totient is φ = 114950836.

The previous prime is 114991883. The next prime is 114991907. The reversal of 114991897 is 798199411.

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: 798199411 = 43 ⋅18562777.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-114991897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 114991897.

It is not an unprimeable number, because it can be changed into a prime (114991817) 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, 15997 + ... + 22042.

It is an arithmetic number, because the mean of its divisors is an integer number (28758240).

Almost surely, 2^114991897 is an apocalyptic number.

It is an amenable number.

114991897 is a deficient number, since it is larger than the sum of its proper divisors (41063).

114991897 is an equidigital number, since it uses as much as digits as its factorization.

114991897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41062.

The product of its digits is 163296, while the sum is 49.

The square root of 114991897 is about 10723.4274837852. The cubic root of 114991897 is about 486.2829912654.

The spelling of 114991897 in words is "one hundred fourteen million, nine hundred ninety-one thousand, eight hundred ninety-seven".