97145255 has 8 divisors (see below), whose sum is σ = 116632224. Its totient is φ = 77677600.

The previous prime is 97145207. The next prime is 97145263. The reversal of 97145255 is 55254179.

It is a happy number.

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

It is not a de Polignac number, because 97145255 - 2¹⁰ = 97144231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10910 + ... + 17700.

It is an arithmetic number, because the mean of its divisors is an integer number (14579028).

Almost surely, 2^97145255 is an apocalyptic number.

97145255 is a deficient number, since it is larger than the sum of its proper divisors (19486969).

97145255 is a wasteful number, since it uses less digits than its factorization.

97145255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9657.

The product of its digits is 63000, while the sum is 38.

The square root of 97145255 is about 9856.2292485514. The cubic root of 97145255 is about 459.6993230404.

The spelling of 97145255 in words is "ninety-seven million, one hundred forty-five thousand, two hundred fifty-five".