1155375 has 48 divisors (see below), whose sum is σ = 2271360. Its totient is φ = 561600.

The previous prime is 1155373. The next prime is 1155377. The reversal of 1155375 is 5735511.

1155375 = T₁₃₀ + T₁₃₁ + ... + T₂₀₈.

It is an interprime number because it is at equal distance from previous prime (1155373) and next prime (1155377).

It is not a de Polignac number, because 1155375 - 2¹ = 1155373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155373) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14586 + ... + 14664.

It is an arithmetic number, because the mean of its divisors is an integer number (47320).

2^1155375 is an apocalyptic number.

1155375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1155375 is a deficient number, since it is larger than the sum of its proper divisors (1115985).

1155375 is a wasteful number, since it uses less digits than its factorization.

1155375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 100 counting only the distinct ones).

The product of its digits is 2625, while the sum is 27.

The square root of 1155375 is about 1074.8837146408. The cubic root of 1155375 is about 104.9319286681.

It can be divided in two parts, 11553 and 75, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 1155375 in words is "one million, one hundred fifty-five thousand, three hundred seventy-five".