139057298 has 4 divisors (see below), whose sum is σ = 208585950. Its totient is φ = 69528648.

The previous prime is 139057283. The next prime is 139057309. The reversal of 139057298 is 892750931.

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., 126405049 + 12652249 = 11243^2 + 3557^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 34764323 + ... + 34764326.

Almost surely, 2^139057298 is an apocalyptic number.

139057298 is a deficient number, since it is larger than the sum of its proper divisors (69528652).

139057298 is an equidigital number, since it uses as much as digits as its factorization.

139057298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69528651.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 139057298 is about 11792.2558486491. The cubic root of 139057298 is about 518.0813142872.

The spelling of 139057298 in words is "one hundred thirty-nine million, fifty-seven thousand, two hundred ninety-eight".