94021231 has 2 divisors, whose sum is σ = 94021232. Its totient is φ = 94021230.

The previous prime is 94021229. The next prime is 94021243. The reversal of 94021231 is 13212049.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 94021231 - 2¹ = 94021229 is a prime.

It is a super-2 number, since 2×94021231² = 17679983757510722, which contains 22 as substring.

Together with 94021229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94021211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47010615 + 47010616.

It is an arithmetic number, because the mean of its divisors is an integer number (47010616).

Almost surely, 2^94021231 is an apocalyptic number.

94021231 is a deficient number, since it is larger than the sum of its proper divisors (1).

94021231 is an equidigital number, since it uses as much as digits as its factorization.

94021231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 94021231 is about 9696.4545582393. The cubic root of 94021231 is about 454.7178236709.

The spelling of 94021231 in words is "ninety-four million, twenty-one thousand, two hundred thirty-one".