90342135 has 40 divisors (see below), whose sum is σ = 174414240. Its totient is φ = 44473536.

The previous prime is 90342121. The next prime is 90342139. The reversal of 90342135 is 53124309.

It is not a de Polignac number, because 90342135 - 2⁹ = 90341623 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 90342099 and 90342108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90342139) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3315 + ... + 13844.

It is an arithmetic number, because the mean of its divisors is an integer number (4360356).

Almost surely, 2^90342135 is an apocalyptic number.

90342135 is a deficient number, since it is larger than the sum of its proper divisors (84072105).

90342135 is a wasteful number, since it uses less digits than its factorization.

90342135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17189 (or 17180 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 90342135 is about 9504.8479735343. The cubic root of 90342135 is about 448.7076252588.

It can be divided in two parts, 90 and 342135, that added together give a square (342225 = 585²).

The spelling of 90342135 in words is "ninety million, three hundred forty-two thousand, one hundred thirty-five".