97142213 has 4 divisors (see below), whose sum is σ = 111019680. Its totient is φ = 83264748.

The previous prime is 97142207. The next prime is 97142219. The reversal of 97142213 is 31224179.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (97142207) and next prime (97142219).

It is not a de Polignac number, because 97142213 - 2¹⁰ = 97141189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97142219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6938723 + ... + 6938736.

It is an arithmetic number, because the mean of its divisors is an integer number (27754920).

Almost surely, 2^97142213 is an apocalyptic number.

It is an amenable number.

97142213 is a deficient number, since it is larger than the sum of its proper divisors (13877467).

97142213 is a wasteful number, since it uses less digits than its factorization.

97142213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13877466.

The product of its digits is 3024, while the sum is 29.

The square root of 97142213 is about 9856.0749286925. The cubic root of 97142213 is about 459.6945246590.

The spelling of 97142213 in words is "ninety-seven million, one hundred forty-two thousand, two hundred thirteen".