1542320223 has 16 divisors (see below), whose sum is σ = 2272064256. Its totient is φ = 925654400.

The previous prime is 1542320209. The next prime is 1542320233. The reversal of 1542320223 is 3220232451.

It is a cyclic number.

It is not a de Polignac number, because 1542320223 - 2⁶ = 1542320159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1542320193 and 1542320202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1542320233) 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, 656253 + ... + 658598.

It is an arithmetic number, because the mean of its divisors is an integer number (142004016).

Almost surely, 2^1542320223 is an apocalyptic number.

1542320223 is a deficient number, since it is larger than the sum of its proper divisors (729744033).

1542320223 is a wasteful number, since it uses less digits than its factorization.

1542320223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314894.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 1542320223 is about 39272.3849925110. The cubic root of 1542320223 is about 1155.3800147574.

Adding to 1542320223 its reverse (3220232451), we get a palindrome (4762552674).

The spelling of 1542320223 in words is "one billion, five hundred forty-two million, three hundred twenty thousand, two hundred twenty-three".