97213135 has 16 divisors (see below), whose sum is σ = 118308960. Its totient is φ = 76677120.

The previous prime is 97213093. The next prime is 97213159. The reversal of 97213135 is 53131279.

It is not a de Polignac number, because 97213135 - 2⁷ = 97213007 is a prime.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 97213097 and 97213106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126031 + ... + 126799.

It is an arithmetic number, because the mean of its divisors is an integer number (7394310).

Almost surely, 2^97213135 is an apocalyptic number.

97213135 is a deficient number, since it is larger than the sum of its proper divisors (21095825).

97213135 is a wasteful number, since it uses less digits than its factorization.

97213135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098.

The product of its digits is 5670, while the sum is 31.

The square root of 97213135 is about 9859.6721547930. The cubic root of 97213135 is about 459.8063693560.

The spelling of 97213135 in words is "ninety-seven million, two hundred thirteen thousand, one hundred thirty-five".