11111455 has 16 divisors (see below), whose sum is σ = 14356224. Its totient is φ = 8225280.

The previous prime is 11111431. The next prime is 11111491. The reversal of 11111455 is 55411111.

11111455 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11111455 - 2⁷ = 11111327 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4114 + ... + 6256.

It is an arithmetic number, because the mean of its divisors is an integer number (897264).

Almost surely, 2^11111455 is an apocalyptic number.

11111455 is a deficient number, since it is larger than the sum of its proper divisors (3244769).

11111455 is a wasteful number, since it uses less digits than its factorization.

11111455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226.

The product of its digits is 100, while the sum is 19.

The square root of 11111455 is about 3333.3849162675. The cubic root of 11111455 is about 223.1466187758.

Adding to 11111455 its reverse (55411111), we get a palindrome (66522566).

It can be divided in two parts, 11111 and 455, that multiplied together give a palindrome (5055505).

The spelling of 11111455 in words is "eleven million, one hundred eleven thousand, four hundred fifty-five".