97142224178 has 8 divisors (see below), whose sum is σ = 147075143472. Its totient is φ = 48117176356.

The previous prime is 97142224133. The next prime is 97142224187. The reversal of 97142224178 is 87142224179.

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

It is a super-2 number, since 2×97142224178² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226967600 + ... + 226968027.

It is an arithmetic number, because the mean of its divisors is an integer number (18384392934).

Almost surely, 2^97142224178 is an apocalyptic number.

97142224178 is a deficient number, since it is larger than the sum of its proper divisors (49932919294).

97142224178 is a wasteful number, since it uses less digits than its factorization.

97142224178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453935736.

The product of its digits is 451584, while the sum is 47.

Subtracting from 97142224178 its reverse (87142224179), we obtain a palindrome (9999999999).

The spelling of 97142224178 in words is "ninety-seven billion, one hundred forty-two million, two hundred twenty-four thousand, one hundred seventy-eight".