139424575 has 6 divisors (see below), whose sum is σ = 172886504. Its totient is φ = 111539640.

The previous prime is 139424573. The next prime is 139424581. The reversal of 139424575 is 575424931.

It is a happy number.

It is not a de Polignac number, because 139424575 - 2¹ = 139424573 is a prime.

It is a super-2 number, since 2×139424575² = 38878424227861250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139424573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2788467 + ... + 2788516.

Almost surely, 2^139424575 is an apocalyptic number.

139424575 is a deficient number, since it is larger than the sum of its proper divisors (33461929).

139424575 is an equidigital number, since it uses as much as digits as its factorization.

139424575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5576993 (or 5576988 counting only the distinct ones).

The product of its digits is 151200, while the sum is 40.

The square root of 139424575 is about 11807.8183844434. The cubic root of 139424575 is about 518.5370306899.

The spelling of 139424575 in words is "one hundred thirty-nine million, four hundred twenty-four thousand, five hundred seventy-five".