1442154243 has 16 divisors (see below), whose sum is σ = 1958028800. Its totient is φ = 943993440.

The previous prime is 1442154229. The next prime is 1442154269. The reversal of 1442154243 is 3424512441.

It is not a de Polignac number, because 1442154243 - 2⁴ = 1442154227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1442154243.

It is not an unprimeable number, because it can be changed into a prime (1442154943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26088 + ... + 59706.

It is an arithmetic number, because the mean of its divisors is an integer number (122376800).

Almost surely, 2^1442154243 is an apocalyptic number.

1442154243 is a deficient number, since it is larger than the sum of its proper divisors (515874557).

1442154243 is a wasteful number, since it uses less digits than its factorization.

1442154243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33882.

The product of its digits is 15360, while the sum is 30.

The square root of 1442154243 is about 37975.7059578884. The cubic root of 1442154243 is about 1129.8060708263.

Adding to 1442154243 its reverse (3424512441), we get a palindrome (4866666684).

The spelling of 1442154243 in words is "one billion, four hundred forty-two million, one hundred fifty-four thousand, two hundred forty-three".