140025155 has 8 divisors (see below), whose sum is σ = 176874000. Its totient is φ = 106124256.

The previous prime is 140025143. The next prime is 140025181. The reversal of 140025155 is 551520041.

It is a happy number.

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 140025155 - 2⁴ = 140025139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140025155.

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, 736880 + ... + 737069.

It is an arithmetic number, because the mean of its divisors is an integer number (22109250).

Almost surely, 2^140025155 is an apocalyptic number.

140025155 is a deficient number, since it is larger than the sum of its proper divisors (36848845).

140025155 is a wasteful number, since it uses less digits than its factorization.

140025155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473973.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 140025155 is about 11833.2225112182. Note that the first 3 decimals coincide. The cubic root of 140025155 is about 519.2805076534.

Adding to 140025155 its reverse (551520041), we get a palindrome (691545196).

The spelling of 140025155 in words is "one hundred forty million, twenty-five thousand, one hundred fifty-five".