139205283 has 16 divisors (see below), whose sum is σ = 218966016. Its totient is φ = 76979520.

The previous prime is 139205273. The next prime is 139205293. The reversal of 139205283 is 382502931.

It is an interprime number because it is at equal distance from previous prime (139205273) and next prime (139205293).

It is not a de Polignac number, because 139205283 - 2¹⁰ = 139204259 is a prime.

It is a super-5 number, since 5×139205283⁵ (a number of 42 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (139205243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106266 + ... + 107567.

It is an arithmetic number, because the mean of its divisors is an integer number (13685376).

Almost surely, 2^139205283 is an apocalyptic number.

139205283 is a deficient number, since it is larger than the sum of its proper divisors (79760733).

139205283 is a wasteful number, since it uses less digits than its factorization.

139205283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213874.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 139205283 is about 11798.5288489710. The cubic root of 139205283 is about 518.2650301215.

The spelling of 139205283 in words is "one hundred thirty-nine million, two hundred five thousand, two hundred eighty-three".