11420155 has 8 divisors (see below), whose sum is σ = 14023152. Its totient is φ = 8923488.

The previous prime is 11420131. The next prime is 11420173. The reversal of 11420155 is 55102411.

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 11420155 - 2⁷ = 11420027 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26344 + ... + 26773.

It is an arithmetic number, because the mean of its divisors is an integer number (1752894).

Almost surely, 2^11420155 is an apocalyptic number.

11420155 is a deficient number, since it is larger than the sum of its proper divisors (2602997).

11420155 is an equidigital number, since it uses as much as digits as its factorization.

11420155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53165.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 11420155 is about 3379.3719830761. The cubic root of 11420155 is about 225.1942684314.

Adding to 11420155 its reverse (55102411), we get a palindrome (66522566).

The spelling of 11420155 in words is "eleven million, four hundred twenty thousand, one hundred fifty-five".