97173140 has 12 divisors (see below), whose sum is σ = 204063636. Its totient is φ = 38869248.

The previous prime is 97173119. The next prime is 97173143. The reversal of 97173140 is 4137179.

97173140 = T₃₅₉₂ + T₃₅₉₃ + ... + T₃₆₀₆.

It can be written as a sum of positive squares in 2 ways, for example, as 32467204 + 64705936 = 5698^2 + 8044^2 .

It is a junction number, because it is equal to n+sod(n) for n = 97173097 and 97173106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97173143) 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, 2429309 + ... + 2429348.

It is an arithmetic number, because the mean of its divisors is an integer number (17005303).

Almost surely, 2^97173140 is an apocalyptic number.

It is an amenable number.

97173140 is an abundant number, since it is smaller than the sum of its proper divisors (106890496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97173140 is a wasteful number, since it uses less digits than its factorization.

97173140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4858666 (or 4858664 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 97173140 is about 9857.6437346863. The cubic root of 97173140 is about 459.7433035357.

The spelling of 97173140 in words is "ninety-seven million, one hundred seventy-three thousand, one hundred forty".