20016151 has 4 divisors (see below), whose sum is σ = 20269600. Its totient is φ = 19762704.

The previous prime is 20016137. The next prime is 20016167. The reversal of 20016151 is 15161002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20016151 - 2¹⁷ = 19885079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20016121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126606 + ... + 126763.

It is an arithmetic number, because the mean of its divisors is an integer number (5067400).

Almost surely, 2^20016151 is an apocalyptic number.

20016151 is a deficient number, since it is larger than the sum of its proper divisors (253449).

20016151 is an equidigital number, since it uses as much as digits as its factorization.

20016151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253448.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 20016151 is about 4473.9413272863. The cubic root of 20016151 is about 271.5148095979.

Adding to 20016151 its reverse (15161002), we get a palindrome (35177153).

The spelling of 20016151 in words is "twenty million, sixteen thousand, one hundred fifty-one".