97207155 has 16 divisors (see below), whose sum is σ = 172812960. Its totient is φ = 51843744.

The previous prime is 97207129. The next prime is 97207183. The reversal of 97207155 is 55170279.

It is not a de Polignac number, because 97207155 - 2⁶ = 97207091 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359892 + ... + 360161.

It is an arithmetic number, because the mean of its divisors is an integer number (10800810).

Almost surely, 2^97207155 is an apocalyptic number.

97207155 is a deficient number, since it is larger than the sum of its proper divisors (75605805).

97207155 is a wasteful number, since it uses less digits than its factorization.

97207155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720067 (or 720061 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 36.

The square root of 97207155 is about 9859.3688946098. The cubic root of 97207155 is about 459.7969409371.

The spelling of 97207155 in words is "ninety-seven million, two hundred seven thousand, one hundred fifty-five".