94123021 has 4 divisors (see below), whose sum is σ = 94320000. Its totient is φ = 93926044.

The previous prime is 94123019. The next prime is 94123031. The reversal of 94123021 is 12032149.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12032149 = 19 ⋅633271.

It is a cyclic number.

It is not a de Polignac number, because 94123021 - 2¹ = 94123019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 94122983 and 94123001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94123031) 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, 97771 + ... + 98728.

It is an arithmetic number, because the mean of its divisors is an integer number (23580000).

Almost surely, 2^94123021 is an apocalyptic number.

It is an amenable number.

94123021 is a deficient number, since it is larger than the sum of its proper divisors (196979).

94123021 is a wasteful number, since it uses less digits than its factorization.

94123021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196978.

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

The square root of 94123021 is about 9701.7019640886. The cubic root of 94123021 is about 454.8818612094.

The spelling of 94123021 in words is "ninety-four million, one hundred twenty-three thousand, twenty-one".