16424131 has 4 divisors (see below), whose sum is σ = 16496712. Its totient is φ = 16351552.

The previous prime is 16424129. The next prime is 16424147. The reversal of 16424131 is 13142461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13142461 = 197 ⋅66713.

It is a cyclic number.

It is not a de Polignac number, because 16424131 - 2¹ = 16424129 is a prime.

It is a super-2 number, since 2×16424131² = 539504158210322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16424171) 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, 35950 + ... + 36403.

It is an arithmetic number, because the mean of its divisors is an integer number (4124178).

Almost surely, 2^16424131 is an apocalyptic number.

16424131 is a deficient number, since it is larger than the sum of its proper divisors (72581).

16424131 is an equidigital number, since it uses as much as digits as its factorization.

16424131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72580.

The product of its digits is 576, while the sum is 22.

The square root of 16424131 is about 4052.6696139705. The cubic root of 16424131 is about 254.1913689987.

Adding to 16424131 its reverse (13142461), we get a palindrome (29566592).

The spelling of 16424131 in words is "sixteen million, four hundred twenty-four thousand, one hundred thirty-one".