97190155 has 8 divisors (see below), whose sum is σ = 116683200. Its totient is φ = 77715456.

The previous prime is 97190153. The next prime is 97190161. The reversal of 97190155 is 55109179.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 97190155 - 2¹ = 97190153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97190153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13726 + ... + 19564.

It is an arithmetic number, because the mean of its divisors is an integer number (14585400).

Almost surely, 2^97190155 is an apocalyptic number.

97190155 is a deficient number, since it is larger than the sum of its proper divisors (19493045).

97190155 is a wasteful number, since it uses less digits than its factorization.

97190155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9173.

The product of its (nonzero) digits is 14175, while the sum is 37.

The square root of 97190155 is about 9858.5067327664. The cubic root of 97190155 is about 459.7701356273.

The spelling of 97190155 in words is "ninety-seven million, one hundred ninety thousand, one hundred fifty-five".