90901003 has 2 divisors, whose sum is σ = 90901004. Its totient is φ = 90901002.

The previous prime is 90901001. The next prime is 90901039. The reversal of 90901003 is 30010909.

It is a weak prime.

It is an emirp because it is prime and its reverse (30010909) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90901003 - 2¹ = 90901001 is a prime.

Together with 90901001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (90901001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45450501 + 45450502.

It is an arithmetic number, because the mean of its divisors is an integer number (45450502).

Almost surely, 2^90901003 is an apocalyptic number.

90901003 is a deficient number, since it is larger than the sum of its proper divisors (1).

90901003 is an equidigital number, since it uses as much as digits as its factorization.

90901003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243, while the sum is 22.

The square root of 90901003 is about 9534.2017494911. The cubic root of 90901003 is about 449.6309781253.

The spelling of 90901003 in words is "ninety million, nine hundred one thousand, three".