139433061 has 16 divisors (see below), whose sum is σ = 194388480. Its totient is φ = 88733040.

The previous prime is 139433053. The next prime is 139433069. The reversal of 139433061 is 160334931.

It is an interprime number because it is at equal distance from previous prime (139433053) and next prime (139433069).

It is not a de Polignac number, because 139433061 - 2³ = 139433053 is a prime.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37630 + ... + 41168.

It is an arithmetic number, because the mean of its divisors is an integer number (12149280).

Almost surely, 2^139433061 is an apocalyptic number.

It is an amenable number.

139433061 is a deficient number, since it is larger than the sum of its proper divisors (54955419).

139433061 is a wasteful number, since it uses less digits than its factorization.

139433061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4136.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 139433061 is about 11808.1777171586. The cubic root of 139433061 is about 518.5475506334.

Adding to 139433061 its reverse (160334931), we get a palindrome (299767992).

The spelling of 139433061 in words is "one hundred thirty-nine million, four hundred thirty-three thousand, sixty-one".