16102993 has 2 divisors, whose sum is σ = 16102994. Its totient is φ = 16102992.

The previous prime is 16102991. The next prime is 16103041. The reversal of 16102993 is 39920161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8105409 + 7997584 = 2847^2 + 2828^2 .

It is a cyclic number.

It is not a de Polignac number, because 16102993 - 2¹ = 16102991 is a prime.

Together with 16102991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16102991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8051496 + 8051497.

It is an arithmetic number, because the mean of its divisors is an integer number (8051497).

Almost surely, 2^16102993 is an apocalyptic number.

It is an amenable number.

16102993 is a deficient number, since it is larger than the sum of its proper divisors (1).

16102993 is an equidigital number, since it uses as much as digits as its factorization.

16102993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 16102993 is about 4012.8534735273. The cubic root of 16102993 is about 252.5237333506.

The spelling of 16102993 in words is "sixteen million, one hundred two thousand, nine hundred ninety-three".