1142454 has 8 divisors (see below), whose sum is σ = 2284920. Its totient is φ = 380816.

The previous prime is 1142431. The next prime is 1142473. The reversal of 1142454 is 4542411.

It is a happy number.

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

1142454 is an admirable number.

It is a super-2 number, since 2×1142454² = 2610402284232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1142454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95199 + ... + 95210.

It is an arithmetic number, because the mean of its divisors is an integer number (285615).

2^1142454 is an apocalyptic number.

1142454 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1142454 is a wasteful number, since it uses less digits than its factorization.

1142454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190414.

The product of its digits is 640, while the sum is 21.

The square root of 1142454 is about 1068.8563982126. The cubic root of 1142454 is about 104.5392967445.

Adding to 1142454 its reverse (4542411), we get a palindrome (5684865).

It can be divided in two parts, 1142 and 454, that added together give a triangular number (1596 = T₅₆).

The spelling of 1142454 in words is "one million, one hundred forty-two thousand, four hundred fifty-four".