139528695 has 16 divisors (see below), whose sum is σ = 232952832. Its totient is φ = 71179680.

The previous prime is 139528693. The next prime is 139528709. The reversal of 139528695 is 596825931.

It is a happy number.

It is not a de Polignac number, because 139528695 - 2¹ = 139528693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139528691) 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, 201871 + ... + 202560.

It is an arithmetic number, because the mean of its divisors is an integer number (14559552).

Almost surely, 2^139528695 is an apocalyptic number.

139528695 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

139528695 is a deficient number, since it is larger than the sum of its proper divisors (93424137).

139528695 is a wasteful number, since it uses less digits than its factorization.

139528695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404462.

The product of its digits is 583200, while the sum is 48.

The square root of 139528695 is about 11812.2265047704. The cubic root of 139528695 is about 518.6660769061. Note that the first 3 decimals are identical.

The spelling of 139528695 in words is "one hundred thirty-nine million, five hundred twenty-eight thousand, six hundred ninety-five".