1140454 has 24 divisors (see below), whose sum is σ = 2061360. Its totient is φ = 463008.

The previous prime is 1140449. The next prime is 1140463. The reversal of 1140454 is 4540411.

It is a super-2 number, since 2×1140454² = 2601270652232, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 21492 + ... + 21544.

It is an arithmetic number, because the mean of its divisors is an integer number (85890).

2^1140454 is an apocalyptic number.

1140454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1140454 is a deficient number, since it is larger than the sum of its proper divisors (920906).

1140454 is an equidigital number, since it uses as much as digits as its factorization.

1140454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1140454 is about 1067.9204090193. The cubic root of 1140454 is about 104.4782583372.

Adding to 1140454 its reverse (4540411), we get a palindrome (5680865).

The spelling of 1140454 in words is "one million, one hundred forty thousand, four hundred fifty-four".