173140981497 has 24 divisors (see below), whose sum is σ = 272960400960. Its totient is φ = 104883086880.

The previous prime is 173140981477. The next prime is 173140981499. The reversal of 173140981497 is 794189041371.

It is a happy number.

173140981497 is a `hidden beast` number, since 1 + 7 + 3 + 140 + 9 + 8 + 1 + 497 = 666.

It is not a de Polignac number, because 173140981497 - 2³¹ = 170993497849 is a prime.

It is a super-2 number, since 2×173140981497² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (173140981499) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217813 + ... + 627474.

It is an arithmetic number, because the mean of its divisors is an integer number (11373350040).

Almost surely, 2^173140981497 is an apocalyptic number.

It is an amenable number.

173140981497 is a deficient number, since it is larger than the sum of its proper divisors (99819419463).

173140981497 is a wasteful number, since it uses less digits than its factorization.

173140981497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847373 (or 847370 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The spelling of 173140981497 in words is "one hundred seventy-three billion, one hundred forty million, nine hundred eighty-one thousand, four hundred ninety-seven".