1155315 has 16 divisors (see below), whose sum is σ = 2112768. Its totient is φ = 528096.

The previous prime is 1155311. The next prime is 1155317. The reversal of 1155315 is 5135511.

It is not a de Polignac number, because 1155315 - 2² = 1155311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

1155315 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1155291 and 1155300.

It is not an unprimeable number, because it can be changed into a prime (1155311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5397 + ... + 5606.

It is an arithmetic number, because the mean of its divisors is an integer number (132048).

2^1155315 is an apocalyptic number.

1155315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1155315 is a deficient number, since it is larger than the sum of its proper divisors (957453).

1155315 is a wasteful number, since it uses less digits than its factorization.

1155315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11018.

The product of its digits is 375, while the sum is 21.

The square root of 1155315 is about 1074.8558042826. The cubic root of 1155315 is about 104.9301122233.

The spelling of 1155315 in words is "one million, one hundred fifty-five thousand, three hundred fifteen".