93312281 has 4 divisors (see below), whose sum is σ = 93457152. Its totient is φ = 93167412.

The previous prime is 93312259. The next prime is 93312283. The reversal of 93312281 is 18221339.

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 93312281 - 2¹⁴ = 93295897 is a prime.

It is a super-2 number, since 2×93312281² = 17414363570845922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (93312283) 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, 71465 + ... + 72758.

It is an arithmetic number, because the mean of its divisors is an integer number (23364288).

Almost surely, 2^93312281 is an apocalyptic number.

It is an amenable number.

93312281 is a deficient number, since it is larger than the sum of its proper divisors (144871).

93312281 is a wasteful number, since it uses less digits than its factorization.

93312281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144870.

The product of its digits is 2592, while the sum is 29.

The square root of 93312281 is about 9659.8282075822. The cubic root of 93312281 is about 453.5720332572.

The spelling of 93312281 in words is "ninety-three million, three hundred twelve thousand, two hundred eighty-one".