16120501 has 2 divisors, whose sum is σ = 16120502. Its totient is φ = 16120500.

The previous prime is 16120499. The next prime is 16120523. The reversal of 16120501 is 10502161.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16080100 + 40401 = 4010^2 + 201^2 .

It is an emirp because it is prime and its reverse (10502161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16120501 - 2¹ = 16120499 is a prime.

Together with 16120499, it forms a pair of twin primes.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16120541) by changing a digit.

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, 8060250 + 8060251.

It is an arithmetic number, because the mean of its divisors is an integer number (8060251).

Almost surely, 2^16120501 is an apocalyptic number.

It is an amenable number.

16120501 is a deficient number, since it is larger than the sum of its proper divisors (1).

16120501 is an equidigital number, since it uses as much as digits as its factorization.

16120501 is an odious number, because the sum of its binary digits is odd.

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

The square root of 16120501 is about 4015.0343709612. The cubic root of 16120501 is about 252.6152191214.

Adding to 16120501 its reverse (10502161), we get a palindrome (26622662).

The spelling of 16120501 in words is "sixteen million, one hundred twenty thousand, five hundred one".