139424282 has 4 divisors (see below), whose sum is σ = 209136426. Its totient is φ = 69712140.

The previous prime is 139424281. The next prime is 139424287. The reversal of 139424282 is 282424931.

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

It can be written as a sum of positive squares in only one way, i.e., 95082001 + 44342281 = 9751^2 + 6659^2 .

It is a super-2 number, since 2×139424282² = 38878260822431048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (139424281) 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 as a sum of consecutive naturals, namely, 34856069 + ... + 34856072.

Almost surely, 2^139424282 is an apocalyptic number.

139424282 is a deficient number, since it is larger than the sum of its proper divisors (69712144).

139424282 is an equidigital number, since it uses as much as digits as its factorization.

139424282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69712143.

The product of its digits is 27648, while the sum is 35.

The square root of 139424282 is about 11807.8059774033. The cubic root of 139424282 is about 518.5366674553.

The spelling of 139424282 in words is "one hundred thirty-nine million, four hundred twenty-four thousand, two hundred eighty-two".