1540223255 has 16 divisors (see below), whose sum is σ = 1859029920. Its totient is φ = 1225026048.

The previous prime is 1540223207. The next prime is 1540223257. The reversal of 1540223255 is 5523220451.

1540223255 = T₁₈₆ + T₁₈₇ + ... + T₂₀₉₈.

It is a cyclic number.

It is not a de Polignac number, because 1540223255 - 2¹⁰ = 1540222231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540223257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 804179 + ... + 806091.

It is an arithmetic number, because the mean of its divisors is an integer number (116189370).

Almost surely, 2^1540223255 is an apocalyptic number.

1540223255 is a deficient number, since it is larger than the sum of its proper divisors (318806665).

1540223255 is a wasteful number, since it uses less digits than its factorization.

1540223255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 1540223255 is about 39245.6781697042. The cubic root of 1540223255 is about 1154.8561516973.

The spelling of 1540223255 in words is "one billion, five hundred forty million, two hundred twenty-three thousand, two hundred fifty-five".