90453243 has 30 divisors (see below), whose sum is σ = 135241284. Its totient is φ = 53767872.

The previous prime is 90453241. The next prime is 90453247. The reversal of 90453243 is 34235409.

It is not a de Polignac number, because 90453243 - 2¹ = 90453241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90453243.

It is not an unprimeable number, because it can be changed into a prime (90453241) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 4760688 + ... + 4760706.

Almost surely, 2^90453243 is an apocalyptic number.

90453243 is a deficient number, since it is larger than the sum of its proper divisors (44788041).

90453243 is an frugal number, since it uses more digits than its factorization.

90453243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109 (or 39 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 90453243 is about 9510.6909843607. The cubic root of 90453243 is about 448.8914987917.

The spelling of 90453243 in words is "ninety million, four hundred fifty-three thousand, two hundred forty-three".