139163099 has 4 divisors (see below), whose sum is σ = 142124064. Its totient is φ = 136202136.

The previous prime is 139163081. The next prime is 139163111. The reversal of 139163099 is 990361931.

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

It is a cyclic number.

It is not a de Polignac number, because 139163099 - 2¹² = 139159003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139163069) 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, 1480412 + ... + 1480505.

It is an arithmetic number, because the mean of its divisors is an integer number (35531016).

Almost surely, 2^139163099 is an apocalyptic number.

139163099 is a deficient number, since it is larger than the sum of its proper divisors (2960965).

139163099 is an equidigital number, since it uses as much as digits as its factorization.

139163099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2960964.

The product of its (nonzero) digits is 39366, while the sum is 41.

The square root of 139163099 is about 11796.7410330142. The cubic root of 139163099 is about 518.2126741086.

The spelling of 139163099 in words is "one hundred thirty-nine million, one hundred sixty-three thousand, ninety-nine".