90103243 has 8 divisors (see below), whose sum is σ = 91507808. Its totient is φ = 88703424.

The previous prime is 90103219. The next prime is 90103289. The reversal of 90103243 is 34230109.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90103243 - 2¹³ = 90095051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90104243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61546 + ... + 62992.

It is an arithmetic number, because the mean of its divisors is an integer number (11438476).

Almost surely, 2^90103243 is an apocalyptic number.

90103243 is a deficient number, since it is larger than the sum of its proper divisors (1404565).

90103243 is a wasteful number, since it uses less digits than its factorization.

90103243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 90103243 is about 9492.2728047607. The cubic root of 90103243 is about 448.3117697909.

The spelling of 90103243 in words is "ninety million, one hundred three thousand, two hundred forty-three".