90136363 has 4 divisors (see below), whose sum is σ = 95438520. Its totient is φ = 84834208.

The previous prime is 90136337. The next prime is 90136381. The reversal of 90136363 is 36363109.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90136363 - 2⁵ = 90136331 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90136463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2651053 + ... + 2651086.

It is an arithmetic number, because the mean of its divisors is an integer number (23859630).

Almost surely, 2^90136363 is an apocalyptic number.

90136363 is a deficient number, since it is larger than the sum of its proper divisors (5302157).

90136363 is a wasteful number, since it uses less digits than its factorization.

90136363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5302156.

The product of its (nonzero) digits is 8748, while the sum is 31.

The square root of 90136363 is about 9494.0172213874. The cubic root of 90136363 is about 448.3666929599.

It can be divided in two parts, 9013 and 6363, that added together give a square (15376 = 124²).

The spelling of 90136363 in words is "ninety million, one hundred thirty-six thousand, three hundred sixty-three".