1385716255 has 16 divisors (see below), whose sum is σ = 2073176064. Its totient is φ = 863822880.

The previous prime is 1385716249. The next prime is 1385716273. The reversal of 1385716255 is 5526175831.

It is a happy number.

It is not a de Polignac number, because 1385716255 - 2⁷ = 1385716127 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 15 ways as a sum of consecutive naturals, for example, 1799247 + ... + 1800016.

It is an arithmetic number, because the mean of its divisors is an integer number (129573504).

Almost surely, 2^1385716255 is an apocalyptic number.

1385716255 is a deficient number, since it is larger than the sum of its proper divisors (687459809).

1385716255 is a wasteful number, since it uses less digits than its factorization.

1385716255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3599286.

The product of its digits is 252000, while the sum is 43.

The square root of 1385716255 is about 37225.2099389647. The cubic root of 1385716255 is about 1114.8713895108.

The spelling of 1385716255 in words is "one billion, three hundred eighty-five million, seven hundred sixteen thousand, two hundred fifty-five".