11401655 has 4 divisors (see below), whose sum is σ = 13681992. Its totient is φ = 9121320.

The previous prime is 11401639. The next prime is 11401657. The reversal of 11401655 is 55610411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55610411 = 727 ⋅76493.

It is not a de Polignac number, because 11401655 - 2⁴ = 11401639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11401655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11401657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1140161 + ... + 1140170.

It is an arithmetic number, because the mean of its divisors is an integer number (3420498).

Almost surely, 2^11401655 is an apocalyptic number.

11401655 is a deficient number, since it is larger than the sum of its proper divisors (2280337).

11401655 is an equidigital number, since it uses as much as digits as its factorization.

11401655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280336.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 11401655 is about 3376.6336786806. The cubic root of 11401655 is about 225.0726020849.

The spelling of 11401655 in words is "eleven million, four hundred one thousand, six hundred fifty-five".