16243455 has 16 divisors (see below), whose sum is σ = 26039520. Its totient is φ = 8646528.

The previous prime is 16243453. The next prime is 16243457. The reversal of 16243455 is 55434261.

It is an interprime number because it is at equal distance from previous prime (16243453) and next prime (16243457).

It is not a de Polignac number, because 16243455 - 2¹ = 16243453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16243453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14661 + ... + 15729.

It is an arithmetic number, because the mean of its divisors is an integer number (1627470).

Almost surely, 2^16243455 is an apocalyptic number.

16243455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16243455 is a deficient number, since it is larger than the sum of its proper divisors (9796065).

16243455 is a wasteful number, since it uses less digits than its factorization.

16243455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090.

The product of its digits is 14400, while the sum is 30.

The square root of 16243455 is about 4030.3169850522. The cubic root of 16243455 is about 253.2558406024.

The spelling of 16243455 in words is "sixteen million, two hundred forty-three thousand, four hundred fifty-five".