90124499 has 2 divisors, whose sum is σ = 90124500. Its totient is φ = 90124498.

The previous prime is 90124487. The next prime is 90124537. The reversal of 90124499 is 99442109.

It is a happy number.

It is an a-pointer prime, because the next prime (90124537) can be obtained adding 90124499 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90124499 - 2⁴ = 90124483 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90124439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45062249 + 45062250.

It is an arithmetic number, because the mean of its divisors is an integer number (45062250).

Almost surely, 2^90124499 is an apocalyptic number.

90124499 is a deficient number, since it is larger than the sum of its proper divisors (1).

90124499 is an equidigital number, since it uses as much as digits as its factorization.

90124499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 90124499 is about 9493.3923862864. The cubic root of 90124499 is about 448.3470203377.

The spelling of 90124499 in words is "ninety million, one hundred twenty-four thousand, four hundred ninety-nine".