90455203 has 2 divisors, whose sum is σ = 90455204. Its totient is φ = 90455202.

The previous prime is 90455173. The next prime is 90455231. The reversal of 90455203 is 30255409.

It is an a-pointer prime, because the next prime (90455231) can be obtained adding 90455203 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90455203 - 2⁵ = 90455171 is a prime.

It is equal to p_5241943 and since 90455203 and 5241943 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (90455243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45227601 + 45227602.

It is an arithmetic number, because the mean of its divisors is an integer number (45227602).

Almost surely, 2^90455203 is an apocalyptic number.

90455203 is a deficient number, since it is larger than the sum of its proper divisors (1).

90455203 is an equidigital number, since it uses as much as digits as its factorization.

90455203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 90455203 is about 9510.7940257373. The cubic root of 90455203 is about 448.8947410597.

The spelling of 90455203 in words is "ninety million, four hundred fifty-five thousand, two hundred three".