16600139 has 2 divisors, whose sum is σ = 16600140. Its totient is φ = 16600138.

The previous prime is 16600099. The next prime is 16600147. The reversal of 16600139 is 93100661.

It is a strong prime.

It is an emirp because it is prime and its reverse (93100661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16600139 - 2²⁰ = 15551563 is a prime.

It is a super-2 number, since 2×16600139² = 551129229638642, which contains 22 as substring.

It is a Chen prime.

It is equal to p_1067192 and since 16600139 and 1067192 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (16600169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8300069 + 8300070.

It is an arithmetic number, because the mean of its divisors is an integer number (8300070).

Almost surely, 2^16600139 is an apocalyptic number.

16600139 is a deficient number, since it is larger than the sum of its proper divisors (1).

16600139 is an equidigital number, since it uses as much as digits as its factorization.

16600139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 16600139 is about 4074.3268155611. The cubic root of 16600139 is about 255.0961523848.

The spelling of 16600139 in words is "sixteen million, six hundred thousand, one hundred thirty-nine".