139081282 has 8 divisors (see below), whose sum is σ = 208886076. Its totient is φ = 69452592.

The previous prime is 139081277. The next prime is 139081289. The reversal of 139081282 is 282180931.

It can be written as a sum of positive squares in 2 ways, for example, as 133841761 + 5239521 = 11569^2 + 2289^2 .

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

It is not an unprimeable number, because it can be changed into a prime (139081289) 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, 42033 + ... + 45220.

Almost surely, 2^139081282 is an apocalyptic number.

139081282 is a deficient number, since it is larger than the sum of its proper divisors (69804794).

139081282 is an equidigital number, since it uses as much as digits as its factorization.

139081282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88052.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 139081282 is about 11793.2727433906. The cubic root of 139081282 is about 518.1110980481. Note that the first 3 decimals are identical.

The spelling of 139081282 in words is "one hundred thirty-nine million, eighty-one thousand, two hundred eighty-two".