1442153323 has 4 divisors (see below), whose sum is σ = 1553088208. Its totient is φ = 1331218440.

The previous prime is 1442153309. The next prime is 1442153351. The reversal of 1442153323 is 3233512441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3233512441 = 29 ⋅111500429.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442153323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1442153291 and 1442153300.

It is not an unprimeable number, because it can be changed into a prime (1442153023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55467423 + ... + 55467448.

It is an arithmetic number, because the mean of its divisors is an integer number (388272052).

Almost surely, 2^1442153323 is an apocalyptic number.

1442153323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1442153323 is a deficient number, since it is larger than the sum of its proper divisors (110934885).

1442153323 is a wasteful number, since it uses less digits than its factorization.

1442153323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110934884.

The product of its digits is 8640, while the sum is 28.

The square root of 1442153323 is about 37975.6938448793. The cubic root of 1442153323 is about 1129.8058305788.

Adding to 1442153323 its reverse (3233512441), we get a palindrome (4675665764).

The spelling of 1442153323 in words is "one billion, four hundred forty-two million, one hundred fifty-three thousand, three hundred twenty-three".