16142459 has 4 divisors (see below), whose sum is σ = 16416120. Its totient is φ = 15868800.

The previous prime is 16142447. The next prime is 16142461. The reversal of 16142459 is 95424161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95424161 = 7 ⋅13632023.

It is a cyclic number.

It is not a de Polignac number, because 16142459 - 2⁴ = 16142443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16142429) 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, 136742 + ... + 136859.

It is an arithmetic number, because the mean of its divisors is an integer number (4104030).

Almost surely, 2^16142459 is an apocalyptic number.

16142459 is a deficient number, since it is larger than the sum of its proper divisors (273661).

16142459 is an equidigital number, since it uses as much as digits as its factorization.

16142459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273660.

The product of its digits is 8640, while the sum is 32.

The square root of 16142459 is about 4017.7679126600. The cubic root of 16142459 is about 252.7298642011.

The spelling of 16142459 in words is "sixteen million, one hundred forty-two thousand, four hundred fifty-nine".