90117123 has 8 divisors (see below), whose sum is σ = 124299600. Its totient is φ = 58006368.

The previous prime is 90117109. The next prime is 90117143. The reversal of 90117123 is 32171109.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90117123 - 2⁴ = 90117107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90117093 and 90117102.

It is not an unprimeable number, because it can be changed into a prime (90117103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517828 + ... + 518001.

It is an arithmetic number, because the mean of its divisors is an integer number (15537450).

Almost surely, 2^90117123 is an apocalyptic number.

90117123 is a deficient number, since it is larger than the sum of its proper divisors (34182477).

90117123 is a wasteful number, since it uses less digits than its factorization.

90117123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035861.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 90117123 is about 9493.0038976080. The cubic root of 90117123 is about 448.3347887474.

The spelling of 90117123 in words is "ninety million, one hundred seventeen thousand, one hundred twenty-three".