11155730 has 8 divisors (see below), whose sum is σ = 20080332. Its totient is φ = 4462288.

The previous prime is 11155721. The next prime is 11155747. The reversal of 11155730 is 3755111.

It can be written as a sum of positive squares in 2 ways, for example, as 9803161 + 1352569 = 3131^2 + 1163^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11155696 and 11155705.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557777 + ... + 557796.

Almost surely, 2^11155730 is an apocalyptic number.

11155730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11155730 is a deficient number, since it is larger than the sum of its proper divisors (8924602).

11155730 is a wasteful number, since it uses less digits than its factorization.

11155730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115580.

The product of its (nonzero) digits is 525, while the sum is 23.

The square root of 11155730 is about 3340.0194610211. The cubic root of 11155730 is about 223.4426113066.

The spelling of 11155730 in words is "eleven million, one hundred fifty-five thousand, seven hundred thirty".