92142221 has 4 divisors (see below), whose sum is σ = 92230944. Its totient is φ = 92053500.

The previous prime is 92142179. The next prime is 92142233. The reversal of 92142221 is 12224129.

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 a cyclic number.

It is not a de Polignac number, because 92142221 - 2¹⁸ = 91880077 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 (92142241) 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, 42785 + ... + 44886.

It is an arithmetic number, because the mean of its divisors is an integer number (23057736).

Almost surely, 2^92142221 is an apocalyptic number.

It is an amenable number.

92142221 is a deficient number, since it is larger than the sum of its proper divisors (88723).

92142221 is a wasteful number, since it uses less digits than its factorization.

92142221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88722.

The product of its digits is 576, while the sum is 23.

The square root of 92142221 is about 9599.0739657532. The cubic root of 92142221 is about 451.6682456762.

The spelling of 92142221 in words is "ninety-two million, one hundred forty-two thousand, two hundred twenty-one".