11901055 has 8 divisors (see below), whose sum is σ = 14742144. Its totient is φ = 9213600.

The previous prime is 11901031. The next prime is 11901073. The reversal of 11901055 is 55010911.

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

It is not a de Polignac number, because 11901055 - 2⁵ = 11901023 is a prime.

It is a super-2 number, since 2×11901055² = 283270220226050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent 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, 38236 + ... + 38545.

It is an arithmetic number, because the mean of its divisors is an integer number (1842768).

Almost surely, 2^11901055 is an apocalyptic number.

11901055 is a deficient number, since it is larger than the sum of its proper divisors (2841089).

11901055 is an equidigital number, since it uses as much as digits as its factorization.

11901055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76817.

The product of its (nonzero) digits is 225, while the sum is 22.

The square root of 11901055 is about 3449.7905733537. The cubic root of 11901055 is about 228.3118680279.

Adding to 11901055 its reverse (55010911), we get a palindrome (66911966).

The spelling of 11901055 in words is "eleven million, nine hundred one thousand, fifty-five".