90943123 has 2 divisors, whose sum is σ = 90943124. Its totient is φ = 90943122.

The previous prime is 90943117. The next prime is 90943147. The reversal of 90943123 is 32134909.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90943123 - 2⁵ = 90943091 is a prime.

It is not a weakly prime, because it can be changed into another prime (90943103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45471561 + 45471562.

It is an arithmetic number, because the mean of its divisors is an integer number (45471562).

Almost surely, 2^90943123 is an apocalyptic number.

90943123 is a deficient number, since it is larger than the sum of its proper divisors (1).

90943123 is an equidigital number, since it uses as much as digits as its factorization.

90943123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 90943123 is about 9536.4103833675. The cubic root of 90943123 is about 449.7004145884.

The spelling of 90943123 in words is "ninety million, nine hundred forty-three thousand, one hundred twenty-three".