1152405 has 12 divisors (see below), whose sum is σ = 1997580. Its totient is φ = 614592.

The previous prime is 1152397. The next prime is 1152419. The reversal of 1152405 is 5042511.

It can be written as a sum of positive squares in 2 ways, for example, as 904401 + 248004 = 951^2 + 498^2 .

It is not a de Polignac number, because 1152405 - 2³ = 1152397 is a prime.

1152405 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12760 + ... + 12849.

It is an arithmetic number, because the mean of its divisors is an integer number (166465).

2^1152405 is an apocalyptic number.

1152405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1152405 is a deficient number, since it is larger than the sum of its proper divisors (845175).

1152405 is a wasteful number, since it uses less digits than its factorization.

1152405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25620 (or 25617 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 1152405 is about 1073.5012808562. The cubic root of 1152405 is about 104.8419390543.

Adding to 1152405 its reverse (5042511), we get a palindrome (6194916).

The spelling of 1152405 in words is "one million, one hundred fifty-two thousand, four hundred five".