97819143 has 8 divisors (see below), whose sum is σ = 132076800. Its totient is φ = 64387128.

The previous prime is 97819133. The next prime is 97819147. The reversal of 97819143 is 34191879.

It is a happy number.

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

It is not a de Polignac number, because 97819143 - 2¹⁴ = 97802759 is a prime.

It is a super-3 number, since 3×97819143³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 97819095 and 97819104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97819147) 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 7 ways as a sum of consecutive naturals, for example, 206133 + ... + 206606.

It is an arithmetic number, because the mean of its divisors is an integer number (16509600).

Almost surely, 2^97819143 is an apocalyptic number.

97819143 is a deficient number, since it is larger than the sum of its proper divisors (34257657).

97819143 is a wasteful number, since it uses less digits than its factorization.

97819143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412821.

The product of its digits is 54432, while the sum is 42.

The square root of 97819143 is about 9890.3560603246. The cubic root of 97819143 is about 460.7598390216.

The spelling of 97819143 in words is "ninety-seven million, eight hundred nineteen thousand, one hundred forty-three".