1142554 has 8 divisors (see below), whose sum is σ = 1958688. Its totient is φ = 489660.

The previous prime is 1142549. The next prime is 1142569. The reversal of 1142554 is 4552411.

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

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 3 ways as a sum of consecutive naturals, for example, 40792 + ... + 40819.

It is an arithmetic number, because the mean of its divisors is an integer number (244836).

2^1142554 is an apocalyptic number.

1142554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1142554 is a deficient number, since it is larger than the sum of its proper divisors (816134).

1142554 is an equidigital number, since it uses as much as digits as its factorization.

1142554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81620.

The product of its digits is 800, while the sum is 22.

The square root of 1142554 is about 1068.9031761577. The cubic root of 1142554 is about 104.5423467943.

Adding to 1142554 its reverse (4552411), we get a palindrome (5694965).

The spelling of 1142554 in words is "one million, one hundred forty-two thousand, five hundred fifty-four".