140687155 has 16 divisors (see below), whose sum is σ = 204292800. Its totient is φ = 90796032.

The previous prime is 140687143. The next prime is 140687161. The reversal of 140687155 is 551786041.

140687155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 140687155 - 2⁹ = 140686643 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117630 + ... + 118819.

It is an arithmetic number, because the mean of its divisors is an integer number (12768300).

Almost surely, 2^140687155 is an apocalyptic number.

140687155 is a deficient number, since it is larger than the sum of its proper divisors (63605645).

140687155 is a wasteful number, since it uses less digits than its factorization.

140687155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236478.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 140687155 is about 11861.1616210218. The cubic root of 140687155 is about 520.0975593581.

The spelling of 140687155 in words is "one hundred forty million, six hundred eighty-seven thousand, one hundred fifty-five".