1375856155 has 16 divisors (see below), whose sum is σ = 1759298400. Its totient is φ = 1029330432.

The previous prime is 1375856143. The next prime is 1375856197. The reversal of 1375856155 is 5516585731.

It is a cyclic number.

It is not a de Polignac number, because 1375856155 - 2¹⁵ = 1375823387 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38205 + ... + 64894.

It is an arithmetic number, because the mean of its divisors is an integer number (109956150).

Almost surely, 2^1375856155 is an apocalyptic number.

1375856155 is a deficient number, since it is larger than the sum of its proper divisors (383442245).

1375856155 is a wasteful number, since it uses less digits than its factorization.

1375856155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103278.

The product of its digits is 630000, while the sum is 46.

The square root of 1375856155 is about 37092.5350306500. The cubic root of 1375856155 is about 1112.2207939654.

The spelling of 1375856155 in words is "one billion, three hundred seventy-five million, eight hundred fifty-six thousand, one hundred fifty-five".