139818147 has 8 divisors (see below), whose sum is σ = 213056256. Its totient is φ = 79896072.

The previous prime is 139818137. The next prime is 139818167. The reversal of 139818147 is 741818931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 139818147 - 2⁶ = 139818083 is a prime.

It is a super-2 number, since 2×139818147² = 39098228461027218, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 139818099 and 139818108.

It is not an unprimeable number, because it can be changed into a prime (139818137) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 3328983 + ... + 3329024.

It is an arithmetic number, because the mean of its divisors is an integer number (26632032).

Almost surely, 2^139818147 is an apocalyptic number.

139818147 is a deficient number, since it is larger than the sum of its proper divisors (73238109).

139818147 is an equidigital number, since it uses as much as digits as its factorization.

139818147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6658017.

The product of its digits is 48384, while the sum is 42.

The square root of 139818147 is about 11824.4723772353. The cubic root of 139818147 is about 519.0244864283.

The spelling of 139818147 in words is "one hundred thirty-nine million, eight hundred eighteen thousand, one hundred forty-seven".