16432453 has 4 divisors (see below), whose sum is σ = 16663968. Its totient is φ = 16200940.

The previous prime is 16432439. The next prime is 16432459. The reversal of 16432453 is 35423461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35423461 = 17 ⋅2083733.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16432453 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 (16432459) 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, 115651 + ... + 115792.

It is an arithmetic number, because the mean of its divisors is an integer number (4165992).

Almost surely, 2^16432453 is an apocalyptic number.

It is an amenable number.

16432453 is a deficient number, since it is larger than the sum of its proper divisors (231515).

16432453 is an equidigital number, since it uses as much as digits as its factorization.

16432453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231514.

The product of its digits is 8640, while the sum is 28.

The square root of 16432453 is about 4053.6962145676. The cubic root of 16432453 is about 254.2342941188.

It can be divided in two parts, 1643 and 2453, that added together give a 12-th power (4096 = 2¹²).

The spelling of 16432453 in words is "sixteen million, four hundred thirty-two thousand, four hundred fifty-three".