4151998097 has 8 divisors (see below), whose sum is σ = 4497231144. Its totient is φ = 3810457728.

The previous prime is 4151998073. The next prime is 4151998117. The reversal of 4151998097 is 7908991514.

It is a Cunningham number, because it is equal to 64436²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 614246656 + 3537751441 = 24784^2 + 59479^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4151998097 - 2⁸ = 4151997841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4151991097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 920828 + ... + 925325.

It is an arithmetic number, because the mean of its divisors is an integer number (562153893).

Almost surely, 2^4151998097 is an apocalyptic number.

It is an amenable number.

4151998097 is a deficient number, since it is larger than the sum of its proper divisors (345233047).

4151998097 is a wasteful number, since it uses less digits than its factorization.

4151998097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846339.

The product of its (nonzero) digits is 816480, while the sum is 53.

The square root of 4151998097 is about 64436.0000077596. Note that the first 5 decimals coincide. The cubic root of 4151998097 is about 1607.2584409837.

The spelling of 4151998097 in words is "four billion, one hundred fifty-one million, nine hundred ninety-eight thousand, ninety-seven".