240051155 has 16 divisors (see below), whose sum is σ = 295325184. Its totient is φ = 187215840.

The previous prime is 240051143. The next prime is 240051157. The reversal of 240051155 is 551150042.

It is a happy number.

It is not a de Polignac number, because 240051155 - 2⁴ = 240051139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 240051155.

It is not an unprimeable number, because it can be changed into a prime (240051157) 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, 194390 + ... + 195620.

It is an arithmetic number, because the mean of its divisors is an integer number (18457824).

Almost surely, 2^240051155 is an apocalyptic number.

240051155 is a deficient number, since it is larger than the sum of its proper divisors (55274029).

240051155 is a wasteful number, since it uses less digits than its factorization.

240051155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186.

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

The square root of 240051155 is about 15493.5843173876. The cubic root of 240051155 is about 621.4906509649.

The spelling of 240051155 in words is "two hundred forty million, fifty-one thousand, one hundred fifty-five".