140920615 has 16 divisors (see below), whose sum is σ = 187608960. Its totient is φ = 100748320.

The previous prime is 140920607. The next prime is 140920621. The reversal of 140920615 is 516029041.

It is not a de Polignac number, because 140920615 - 2³ = 140920607 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, 18469 + ... + 24958.

It is an arithmetic number, because the mean of its divisors is an integer number (11725560).

Almost surely, 2^140920615 is an apocalyptic number.

140920615 is a deficient number, since it is larger than the sum of its proper divisors (46688345).

140920615 is a wasteful number, since it uses less digits than its factorization.

140920615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43502.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 140920615 is about 11870.9989048942. The cubic root of 140920615 is about 520.3850882715.

Adding to 140920615 its reverse (516029041), we get a palindrome (656949656).

The spelling of 140920615 in words is "one hundred forty million, nine hundred twenty thousand, six hundred fifteen".