16131355 has 4 divisors (see below), whose sum is σ = 19357632. Its totient is φ = 12905080.

The previous prime is 16131343. The next prime is 16131359. The reversal of 16131355 is 55313161.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-16131355 is a prime.

It is a super-3 number, since 3×16131355³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16131359) 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 3 ways as a sum of consecutive naturals, for example, 1613131 + ... + 1613140.

It is an arithmetic number, because the mean of its divisors is an integer number (4839408).

Almost surely, 2^16131355 is an apocalyptic number.

16131355 is a deficient number, since it is larger than the sum of its proper divisors (3226277).

16131355 is an equidigital number, since it uses as much as digits as its factorization.

16131355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3226276.

The product of its digits is 1350, while the sum is 25.

The square root of 16131355 is about 4016.3858131410. The cubic root of 16131355 is about 252.6719020256.

The spelling of 16131355 in words is "sixteen million, one hundred thirty-one thousand, three hundred fifty-five".