16142993 has 2 divisors, whose sum is σ = 16142994. Its totient is φ = 16142992.

The previous prime is 16142963. The next prime is 16143007. The reversal of 16142993 is 39924161.

16142993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14961424 + 1181569 = 3868^2 + 1087^2 .

It is a cyclic number.

It is not a de Polignac number, because 16142993 - 2¹⁰ = 16141969 is a prime.

It is not a weakly prime, because it can be changed into another prime (16142933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8071496 + 8071497.

It is an arithmetic number, because the mean of its divisors is an integer number (8071497).

Almost surely, 2^16142993 is an apocalyptic number.

It is an amenable number.

16142993 is a deficient number, since it is larger than the sum of its proper divisors (1).

16142993 is an equidigital number, since it uses as much as digits as its factorization.

16142993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 35.

The square root of 16142993 is about 4017.8343669196. The cubic root of 16142993 is about 252.7326509772.

The spelling of 16142993 in words is "sixteen million, one hundred forty-two thousand, nine hundred ninety-three".