11155001 has 8 divisors (see below), whose sum is σ = 13105344. Its totient is φ = 9360720.

The previous prime is 11154991. The next prime is 11155049. The reversal of 11155001 is 10055111.

11155001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11155001 - 2¹⁸ = 10892857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11155051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38861 + ... + 39146.

It is an arithmetic number, because the mean of its divisors is an integer number (1638168).

Almost surely, 2^11155001 is an apocalyptic number.

11155001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11155001 is a deficient number, since it is larger than the sum of its proper divisors (1950343).

11155001 is a wasteful number, since it uses less digits than its factorization.

11155001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78031.

The product of its (nonzero) digits is 25, while the sum is 14.

The square root of 11155001 is about 3339.9103281376. The cubic root of 11155001 is about 223.4377440557.

It can be divided in two parts, 1115 and 5001, that added together give a palindrome (6116).

The spelling of 11155001 in words is "eleven million, one hundred fifty-five thousand, one".