90300851002 has 4 divisors (see below), whose sum is σ = 135451276506. Its totient is φ = 45150425500.

The previous prime is 90300850921. The next prime is 90300851071. The reversal of 90300851002 is 20015800309.

It is a Cunningham number, because it is equal to 300501²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20015800309 = 2113 ⋅9472693.

It can be written as a sum of positive squares in only one way, i.e., 90300851001 + 1 = 300501^2 + 1^2 .

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 as a sum of consecutive naturals, namely, 22575212749 + ... + 22575212752.

Almost surely, 2^90300851002 is an apocalyptic number.

90300851002 is a deficient number, since it is larger than the sum of its proper divisors (45150425504).

90300851002 is a wasteful number, since it uses less digits than its factorization.

90300851002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45150425503.

The product of its (nonzero) digits is 2160, while the sum is 28.

The spelling of 90300851002 in words is "ninety billion, three hundred million, eight hundred fifty-one thousand, two".