1442543154 has 64 divisors (see below), whose sum is σ = 3166055424. Its totient is φ = 435502656.

The previous prime is 1442543131. The next prime is 1442543171. The reversal of 1442543154 is 4513452441.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1054579 + ... + 1055945.

It is an arithmetic number, because the mean of its divisors is an integer number (49469616).

Almost surely, 2^1442543154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1442543154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1583027712).

1442543154 is an abundant number, since it is smaller than the sum of its proper divisors (1723512270).

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

1442543154 is a wasteful number, since it uses less digits than its factorization.

1442543154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631.

The product of its digits is 38400, while the sum is 33.

The square root of 1442543154 is about 37980.8261363546. The cubic root of 1442543154 is about 1129.9076213410.

Adding to 1442543154 its reverse (4513452441), we get a palindrome (5955995595).

The spelling of 1442543154 in words is "one billion, four hundred forty-two million, five hundred forty-three thousand, one hundred fifty-four".