139222035842 has 18 divisors (see below), whose sum is σ = 209658687849. Its totient is φ = 69336889200.

The previous prime is 139222035817. The next prime is 139222035847. The reversal of 139222035842 is 248530222931.

It can be written as a sum of positive squares in 2 ways, for example, as 120581868001 + 18640167841 = 347249^2 + 136529^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=263839.

It is a super-2 number, since 2×139222035842² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 139222035842.

It is not an unprimeable number, because it can be changed into a prime (139222035847) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 231650342 + ... + 231650942.

Almost surely, 2^139222035842 is an apocalyptic number.

139222035842 is a deficient number, since it is larger than the sum of its proper divisors (70436652007).

139222035842 is an frugal number, since it uses more digits than its factorization.

139222035842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2082 (or 1042 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 139222035842 in words is "one hundred thirty-nine billion, two hundred twenty-two million, thirty-five thousand, eight hundred forty-two".