16140623 has 4 divisors (see below), whose sum is σ = 16150848. Its totient is φ = 16130400.

The previous prime is 16140613. The next prime is 16140637. The reversal of 16140623 is 32604161.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 16140623 - 2¹⁴ = 16124239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16140613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2186 + ... + 6087.

It is an arithmetic number, because the mean of its divisors is an integer number (4037712).

Almost surely, 2^16140623 is an apocalyptic number.

16140623 is a deficient number, since it is larger than the sum of its proper divisors (10225).

16140623 is an equidigital number, since it uses as much as digits as its factorization.

16140623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10224.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 16140623 is about 4017.5394210885. The cubic root of 16140623 is about 252.7202822321.

Adding to 16140623 its reverse (32604161), we get a palindrome (48744784).

The spelling of 16140623 in words is "sixteen million, one hundred forty thousand, six hundred twenty-three".