139535038 has 4 divisors (see below), whose sum is σ = 209302560. Its totient is φ = 69767518.

The previous prime is 139535021. The next prime is 139535041. The reversal of 139535038 is 830535931.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×139535038² = 38940053659322888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 139534988 and 139535006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34883758 + ... + 34883761.

It is an arithmetic number, because the mean of its divisors is an integer number (52325640).

Almost surely, 2^139535038 is an apocalyptic number.

139535038 is a deficient number, since it is larger than the sum of its proper divisors (69767522).

139535038 is an equidigital number, since it uses as much as digits as its factorization.

139535038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69767521.

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 139535038 is about 11812.4949947079. The cubic root of 139535038 is about 518.6739363386.

The spelling of 139535038 in words is "one hundred thirty-nine million, five hundred thirty-five thousand, thirty-eight".