90351223 has 2 divisors, whose sum is σ = 90351224. Its totient is φ = 90351222.

The previous prime is 90351203. The next prime is 90351241. The reversal of 90351223 is 32215309.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90351223 - 2¹³ = 90343031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90351203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45175611 + 45175612.

It is an arithmetic number, because the mean of its divisors is an integer number (45175612).

Almost surely, 2^90351223 is an apocalyptic number.

90351223 is a deficient number, since it is larger than the sum of its proper divisors (1).

90351223 is an equidigital number, since it uses as much as digits as its factorization.

90351223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 90351223 is about 9505.3260333352. The cubic root of 90351223 is about 448.7226707234.

The spelling of 90351223 in words is "ninety million, three hundred fifty-one thousand, two hundred twenty-three".