139433019 has 12 divisors (see below), whose sum is σ = 204348648. Its totient is φ = 84504640.

The previous prime is 139433003. The next prime is 139433033. The reversal of 139433019 is 910334931.

139433019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 139433019 - 2⁴ = 139433003 is a prime.

It is a super-2 number, since 2×139433019² = 38883133574908722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (139433069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191694 + ... + 192419.

It is an arithmetic number, because the mean of its divisors is an integer number (17029054).

Almost surely, 2^139433019 is an apocalyptic number.

139433019 is a deficient number, since it is larger than the sum of its proper divisors (64915629).

139433019 is a wasteful number, since it uses less digits than its factorization.

139433019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384138 (or 384127 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 139433019 is about 11808.1759387299. The cubic root of 139433019 is about 518.5474985678.

The spelling of 139433019 in words is "one hundred thirty-nine million, four hundred thirty-three thousand, nineteen".