97147231953 has 8 divisors (see below), whose sum is σ = 131653079616. Its totient is φ = 63703102800.

The previous prime is 97147231949. The next prime is 97147231957. The reversal of 97147231953 is 35913274179.

It is an interprime number because it is at equal distance from previous prime (97147231949) and next prime (97147231957).

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

It is not a de Polignac number, because 97147231953 - 2² = 97147231949 is a prime.

It is a super-2 number, since 2×97147231953² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 97147231896 and 97147231905.

It is not an unprimeable number, because it can be changed into a prime (97147231957) 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, 265429413 + ... + 265429778.

It is an arithmetic number, because the mean of its divisors is an integer number (16456634952).

Almost surely, 2^97147231953 is an apocalyptic number.

It is an amenable number.

97147231953 is a deficient number, since it is larger than the sum of its proper divisors (34505847663).

97147231953 is a wasteful number, since it uses less digits than its factorization.

97147231953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530859255.

The product of its digits is 1428840, while the sum is 51.

The spelling of 97147231953 in words is "ninety-seven billion, one hundred forty-seven million, two hundred thirty-one thousand, nine hundred fifty-three".