16870142 has 4 divisors (see below), whose sum is σ = 25305216. Its totient is φ = 8435070.

The previous prime is 16870129. The next prime is 16870153. The reversal of 16870142 is 24107861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24107861 = 223 ⋅108107.

It is a super-2 number, since 2×16870142² = 569203382200328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4217534 + ... + 4217537.

It is an arithmetic number, because the mean of its divisors is an integer number (6326304).

Almost surely, 2^16870142 is an apocalyptic number.

16870142 is a deficient number, since it is larger than the sum of its proper divisors (8435074).

16870142 is an equidigital number, since it uses as much as digits as its factorization.

16870142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8435073.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 16870142 is about 4107.3278417969. The cubic root of 16870142 is about 256.4717761188.

The spelling of 16870142 in words is "sixteen million, eight hundred seventy thousand, one hundred forty-two".