11405901 has 8 divisors (see below), whose sum is σ = 16377760. Its totient is φ = 7018992.

The previous prime is 11405899. The next prime is 11405959. The reversal of 11405901 is 10950411.

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

It is not a de Polignac number, because 11405901 - 2¹ = 11405899 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11405981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146191 + ... + 146268.

It is an arithmetic number, because the mean of its divisors is an integer number (2047220).

Almost surely, 2^11405901 is an apocalyptic number.

It is an amenable number.

11405901 is a deficient number, since it is larger than the sum of its proper divisors (4971859).

11405901 is a wasteful number, since it uses less digits than its factorization.

11405901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292475.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 11405901 is about 3377.2623528533. The cubic root of 11405901 is about 225.1005377856.

The spelling of 11405901 in words is "eleven million, four hundred five thousand, nine hundred one".