97143261 has 8 divisors (see below), whose sum is σ = 130182624. Its totient is φ = 64433040.

The previous prime is 97143247. The next prime is 97143281. The reversal of 97143261 is 16234179.

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

It is not a de Polignac number, because 97143261 - 2⁵ = 97143229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97143281) 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, 81595 + ... + 82776.

It is an arithmetic number, because the mean of its divisors is an integer number (16272828).

Almost surely, 2^97143261 is an apocalyptic number.

It is an amenable number.

97143261 is a deficient number, since it is larger than the sum of its proper divisors (33039363).

97143261 is a wasteful number, since it uses less digits than its factorization.

97143261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164571.

The product of its digits is 9072, while the sum is 33.

The square root of 97143261 is about 9856.1280937293. The cubic root of 97143261 is about 459.6961777616.

The spelling of 97143261 in words is "ninety-seven million, one hundred forty-three thousand, two hundred sixty-one".