16121051 has 2 divisors, whose sum is σ = 16121052. Its totient is φ = 16121050.

The previous prime is 16121041. The next prime is 16121057. The reversal of 16121051 is 15012161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16121051 - 2¹⁴ = 16104667 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a plaindrome in base 13.

It is not a weakly prime, because it can be changed into another prime (16121057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8060525 + 8060526.

It is an arithmetic number, because the mean of its divisors is an integer number (8060526).

Almost surely, 2^16121051 is an apocalyptic number.

16121051 is a deficient number, since it is larger than the sum of its proper divisors (1).

16121051 is an equidigital number, since it uses as much as digits as its factorization.

16121051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 16121051 is about 4015.1028629414. The cubic root of 16121051 is about 252.6180920013.

It can be divided in two parts, 161 and 21051, that added together give a palindrome (21212).

The spelling of 16121051 in words is "sixteen million, one hundred twenty-one thousand, fifty-one".