1153975 has 12 divisors (see below), whose sum is σ = 1478080. Its totient is φ = 892800.

The previous prime is 1153973. The next prime is 1154017. The reversal of 1153975 is 5793511.

It is not a de Polignac number, because 1153975 - 2¹ = 1153973 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

1153975 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153973) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 31 + ... + 1519.

2^1153975 is an apocalyptic number.

1153975 is a deficient number, since it is larger than the sum of its proper divisors (324105).

1153975 is a wasteful number, since it uses less digits than its factorization.

1153975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530 (or 1525 counting only the distinct ones).

The product of its digits is 4725, while the sum is 31.

The square root of 1153975 is about 1074.2322840057. The cubic root of 1153975 is about 104.8895285596.

The spelling of 1153975 in words is "one million, one hundred fifty-three thousand, nine hundred seventy-five".