90136814 has 8 divisors (see below), whose sum is σ = 139867560. Its totient is φ = 43514296.

The previous prime is 90136811. The next prime is 90136829. The reversal of 90136814 is 41863109.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90136811) 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, 776984 + ... + 777099.

It is an arithmetic number, because the mean of its divisors is an integer number (17483445).

Almost surely, 2^90136814 is an apocalyptic number.

90136814 is a deficient number, since it is larger than the sum of its proper divisors (49730746).

90136814 is a wasteful number, since it uses less digits than its factorization.

90136814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554114.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 90136814 is about 9494.0409731578. The cubic root of 90136814 is about 448.3674407640.

The spelling of 90136814 in words is "ninety million, one hundred thirty-six thousand, eight hundred fourteen".