16145434 has 4 divisors (see below), whose sum is σ = 24218154. Its totient is φ = 8072716.

The previous prime is 16145413. The next prime is 16145449. The reversal of 16145434 is 43454161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43454161 = 89 ⋅488249.

It can be written as a sum of positive squares in only one way, i.e., 15233409 + 912025 = 3903^2 + 955^2 .

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4036357 + ... + 4036360.

Almost surely, 2^16145434 is an apocalyptic number.

16145434 is a deficient number, since it is larger than the sum of its proper divisors (8072720).

16145434 is an equidigital number, since it uses as much as digits as its factorization.

16145434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8072719.

The product of its digits is 5760, while the sum is 28.

The square root of 16145434 is about 4018.1381260479. The cubic root of 16145434 is about 252.7453889973.

Adding to 16145434 its reverse (43454161), we get a palindrome (59599595).

The spelling of 16145434 in words is "sixteen million, one hundred forty-five thousand, four hundred thirty-four".