139104015 has 16 divisors (see below), whose sum is σ = 222732288. Its totient is φ = 74133536.

The previous prime is 139103983. The next prime is 139104061. The reversal of 139104015 is 510401931.

It is a cyclic number.

It is not a de Polignac number, because 139104015 - 2⁵ = 139103983 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 24802 + ... + 29888.

It is an arithmetic number, because the mean of its divisors is an integer number (13920768).

Almost surely, 2^139104015 is an apocalyptic number.

139104015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

139104015 is a deficient number, since it is larger than the sum of its proper divisors (83628273).

139104015 is a wasteful number, since it uses less digits than its factorization.

139104015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6918.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 139104015 is about 11794.2365161972. The cubic root of 139104015 is about 518.1393251341.

Adding to 139104015 its reverse (510401931), we get a palindrome (649505946).

The spelling of 139104015 in words is "one hundred thirty-nine million, one hundred four thousand, fifteen".