140106615 has 16 divisors (see below), whose sum is σ = 244550016. Its totient is φ = 67930400.

The previous prime is 140106611. The next prime is 140106623. The reversal of 140106615 is 516601041.

It is not a de Polignac number, because 140106615 - 2² = 140106611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140106611) 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 15 ways as a sum of consecutive naturals, for example, 424401 + ... + 424730.

It is an arithmetic number, because the mean of its divisors is an integer number (15284376).

Almost surely, 2^140106615 is an apocalyptic number.

140106615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140106615 is a deficient number, since it is larger than the sum of its proper divisors (104443401).

140106615 is a wasteful number, since it uses less digits than its factorization.

140106615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849150.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 140106615 is about 11836.6640148312. The cubic root of 140106615 is about 519.3811857303.

Adding to 140106615 its reverse (516601041), we get a palindrome (656707656).

The spelling of 140106615 in words is "one hundred forty million, one hundred six thousand, six hundred fifteen".