140720255 has 8 divisors (see below), whose sum is σ = 181853952. Its totient is φ = 103916448.

The previous prime is 140720249. The next prime is 140720269. The reversal of 140720255 is 552027041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140720255 - 2¹² = 140716159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1082399 + ... + 1082528.

It is an arithmetic number, because the mean of its divisors is an integer number (22731744).

Almost surely, 2^140720255 is an apocalyptic number.

140720255 is a deficient number, since it is larger than the sum of its proper divisors (41133697).

140720255 is a wasteful number, since it uses less digits than its factorization.

140720255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2164945.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 140720255 is about 11862.5568491788. The cubic root of 140720255 is about 520.1383446008.

Adding to 140720255 its reverse (552027041), we get a palindrome (692747296).

The spelling of 140720255 in words is "one hundred forty million, seven hundred twenty thousand, two hundred fifty-five".