16123293 has 28 divisors (see below), whose sum is σ = 25615548. Its totient is φ = 10108800.

The previous prime is 16123277. The next prime is 16123297. The reversal of 16123293 is 39232161.

It can be written as a sum of positive squares in 2 ways, for example, as 4549689 + 11573604 = 2133^2 + 3402^2 .

It is not a de Polignac number, because 16123293 - 2⁴ = 16123277 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16123297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 11743 + ... + 13043.

It is an arithmetic number, because the mean of its divisors is an integer number (914841).

Almost surely, 2^16123293 is an apocalyptic number.

It is an amenable number.

16123293 is a deficient number, since it is larger than the sum of its proper divisors (9492255).

16123293 is an equidigital number, since it uses as much as digits as its factorization.

16123293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336 (or 1321 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 16123293 is about 4015.3820490708. The cubic root of 16123293 is about 252.6298022285.

The spelling of 16123293 in words is "sixteen million, one hundred twenty-three thousand, two hundred ninety-three".