139798522 has 4 divisors (see below), whose sum is σ = 209697786. Its totient is φ = 69899260.

The previous prime is 139798507. The next prime is 139798541. The reversal of 139798522 is 225897931.

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., 132503121 + 7295401 = 11511^2 + 2701^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34949629 + ... + 34949632.

Almost surely, 2^139798522 is an apocalyptic number.

139798522 is a deficient number, since it is larger than the sum of its proper divisors (69899264).

139798522 is an equidigital number, since it uses as much as digits as its factorization.

139798522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69899263.

The product of its digits is 272160, while the sum is 46.

The square root of 139798522 is about 11823.6425013614. The cubic root of 139798522 is about 519.0002017119. Note that the first 3 decimals are identical.

The spelling of 139798522 in words is "one hundred thirty-nine million, seven hundred ninety-eight thousand, five hundred twenty-two".