90435134 has 4 divisors (see below), whose sum is σ = 135652704. Its totient is φ = 45217566.

The previous prime is 90435131. The next prime is 90435151. The reversal of 90435134 is 43153409.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43153409 = 13 ⋅3319493.

It is a junction number, because it is equal to n+sod(n) for n = 90435097 and 90435106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90435131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22608782 + ... + 22608785.

It is an arithmetic number, because the mean of its divisors is an integer number (33913176).

Almost surely, 2^90435134 is an apocalyptic number.

90435134 is a deficient number, since it is larger than the sum of its proper divisors (45217570).

90435134 is a wasteful number, since it uses less digits than its factorization.

90435134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45217569.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 90435134 is about 9509.7389028301. The cubic root of 90435134 is about 448.8615403350.

The spelling of 90435134 in words is "ninety million, four hundred thirty-five thousand, one hundred thirty-four".