1141455 has 24 divisors (see below), whose sum is σ = 2125872. Its totient is φ = 521472.

The previous prime is 1141453. The next prime is 1141477. The reversal of 1141455 is 5541411.

It is not a de Polignac number, because 1141455 - 2¹ = 1141453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42 + ... + 1511.

It is an arithmetic number, because the mean of its divisors is an integer number (88578).

2^1141455 is an apocalyptic number.

1141455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1141455 is a deficient number, since it is larger than the sum of its proper divisors (984417).

1141455 is a wasteful number, since it uses less digits than its factorization.

1141455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575 (or 1568 counting only the distinct ones).

The product of its digits is 400, while the sum is 21.

The square root of 1141455 is about 1068.3889741101. The cubic root of 1141455 is about 104.5088169724.

Adding to 1141455 its reverse (5541411), we get a palindrome (6682866).

It can be divided in two parts, 1141 and 455, that added together give a triangular number (1596 = T₅₆).

The spelling of 1141455 in words is "one million, one hundred forty-one thousand, four hundred fifty-five".