139522035 has 16 divisors (see below), whose sum is σ = 234984960. Its totient is φ = 70495200.

The previous prime is 139522021. The next prime is 139522039. The reversal of 139522035 is 530225931.

It is not a de Polignac number, because 139522035 - 2²¹ = 137424883 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 139521993 and 139522011.

It is not an unprimeable number, because it can be changed into a prime (139522039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244491 + ... + 245060.

It is an arithmetic number, because the mean of its divisors is an integer number (14686560).

Almost surely, 2^139522035 is an apocalyptic number.

139522035 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

139522035 is a deficient number, since it is larger than the sum of its proper divisors (95462925).

139522035 is a wasteful number, since it uses less digits than its factorization.

139522035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489578.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 139522035 is about 11811.9445901172. The cubic root of 139522035 is about 518.6578244315.

Adding to 139522035 its reverse (530225931), we get a palindrome (669747966).

The spelling of 139522035 in words is "one hundred thirty-nine million, five hundred twenty-two thousand, thirty-five".