20750315 has 8 divisors (see below), whose sum is σ = 25703808. Its totient is φ = 16064640.

The previous prime is 20750287. The next prime is 20750321. The reversal of 20750315 is 51305702.

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

It is not a de Polignac number, because 20750315 - 2¹⁰ = 20749291 is a prime.

It is a Duffinian 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, 66782 + ... + 67091.

It is an arithmetic number, because the mean of its divisors is an integer number (3212976).

Almost surely, 2^20750315 is an apocalyptic number.

20750315 is a deficient number, since it is larger than the sum of its proper divisors (4953493).

20750315 is a wasteful number, since it uses less digits than its factorization.

20750315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133909.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 20750315 is about 4555.2513651828. The cubic root of 20750315 is about 274.7946235177.

The spelling of 20750315 in words is "twenty million, seven hundred fifty thousand, three hundred fifteen".