900315855 has 48 divisors (see below), whose sum is σ = 1665930240. Its totient is φ = 448459200.

The previous prime is 900315853. The next prime is 900315859. The reversal of 900315855 is 558513009.

It is a happy number.

It is not a de Polignac number, because 900315855 - 2¹ = 900315853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900315853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53290 + ... + 68120.

It is an arithmetic number, because the mean of its divisors is an integer number (34706880).

Almost surely, 2^900315855 is an apocalyptic number.

900315855 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

900315855 is a deficient number, since it is larger than the sum of its proper divisors (765614385).

900315855 is a wasteful number, since it uses less digits than its factorization.

900315855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14932 (or 14929 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 900315855 is about 30005.2637882089. The cubic root of 900315855 is about 965.6023175619.

The spelling of 900315855 in words is "nine hundred million, three hundred fifteen thousand, eight hundred fifty-five".