20750151 has 8 divisors (see below), whose sum is σ = 27725184. Its totient is φ = 13804280.

The previous prime is 20750131. The next prime is 20750153. The reversal of 20750151 is 15105702.

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 20750151 - 2⁶ = 20750087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20750153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5571 + ... + 8516.

It is an arithmetic number, because the mean of its divisors is an integer number (3465648).

Almost surely, 2^20750151 is an apocalyptic number.

20750151 is a deficient number, since it is larger than the sum of its proper divisors (6975033).

20750151 is a wasteful number, since it uses less digits than its factorization.

20750151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14581.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 20750151 is about 4555.2333639453. The cubic root of 20750151 is about 274.7938995699.

Adding to 20750151 its reverse (15105702), we get a palindrome (35855853).

The spelling of 20750151 in words is "twenty million, seven hundred fifty thousand, one hundred fifty-one".