139875602 has 4 divisors (see below), whose sum is σ = 209813406. Its totient is φ = 69937800.

The previous prime is 139875601. The next prime is 139875611. The reversal of 139875602 is 206578931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 206578931 = 13 ⋅15890687.

It can be written as a sum of positive squares in only one way, i.e., 132963961 + 6911641 = 11531^2 + 2629^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 139875602.

It is not an unprimeable number, because it can be changed into a prime (139875601) 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 as a sum of consecutive naturals, namely, 34968899 + ... + 34968902.

Almost surely, 2^139875602 is an apocalyptic number.

139875602 is a deficient number, since it is larger than the sum of its proper divisors (69937804).

139875602 is an equidigital number, since it uses as much as digits as its factorization.

139875602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69937803.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 139875602 is about 11826.9016229949. The cubic root of 139875602 is about 519.0955703535.

The spelling of 139875602 in words is "one hundred thirty-nine million, eight hundred seventy-five thousand, six hundred two".