97142911 has 4 divisors (see below), whose sum is σ = 98104824. Its totient is φ = 96181000.

The previous prime is 97142897. The next prime is 97142917. The reversal of 97142911 is 11924179.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97142911 - 2⁹ = 97142399 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 (97142917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480805 + ... + 481006.

It is an arithmetic number, because the mean of its divisors is an integer number (24526206).

Almost surely, 2^97142911 is an apocalyptic number.

97142911 is a deficient number, since it is larger than the sum of its proper divisors (961913).

97142911 is a wasteful number, since it uses less digits than its factorization.

97142911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961912.

The product of its digits is 4536, while the sum is 34.

The square root of 97142911 is about 9856.1103382622. The cubic root of 97142911 is about 459.6956256771.

The spelling of 97142911 in words is "ninety-seven million, one hundred forty-two thousand, nine hundred eleven".