90515001 has 8 divisors (see below), whose sum is σ = 120789184. Its totient is φ = 60292080.

The previous prime is 90514981. The next prime is 90515011. The reversal of 90515001 is 10051509.

It is a happy number.

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

It is not a de Polignac number, because 90515001 - 2⁷ = 90514873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90515011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8485 + ... + 15906.

It is an arithmetic number, because the mean of its divisors is an integer number (15098648).

Almost surely, 2^90515001 is an apocalyptic number.

It is an amenable number.

90515001 is a deficient number, since it is larger than the sum of its proper divisors (30274183).

90515001 is a wasteful number, since it uses less digits than its factorization.

90515001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25631.

The product of its (nonzero) digits is 225, while the sum is 21.

The square root of 90515001 is about 9513.9371976065. The cubic root of 90515001 is about 448.9936375075.

The spelling of 90515001 in words is "ninety million, five hundred fifteen thousand, one".