90134245 has 8 divisors (see below), whose sum is σ = 108266616. Its totient is φ = 72037056.

The previous prime is 90134201. The next prime is 90134251. The reversal of 90134245 is 54243109.

It can be written as a sum of positive squares in 4 ways, for example, as 10246401 + 79887844 = 3201^2 + 8938^2 .

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 90134245 - 2¹³ = 90126053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 2782 + ... + 13711.

It is an arithmetic number, because the mean of its divisors is an integer number (13533327).

Almost surely, 2^90134245 is an apocalyptic number.

It is an amenable number.

90134245 is a deficient number, since it is larger than the sum of its proper divisors (18132371).

90134245 is a wasteful number, since it uses less digits than its factorization.

90134245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17591.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 90134245 is about 9493.9056768013. The cubic root of 90134245 is about 448.3631810657.

The spelling of 90134245 in words is "ninety million, one hundred thirty-four thousand, two hundred forty-five".