1142400473 has 2 divisors, whose sum is σ = 1142400474. Its totient is φ = 1142400472.

The previous prime is 1142400449. The next prime is 1142400521. The reversal of 1142400473 is 3740042411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1078991104 + 63409369 = 32848^2 + 7963^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142400473 - 2¹⁰ = 1142399449 is a prime.

It is not a weakly prime, because it can be changed into another prime (1142408473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571200236 + 571200237.

It is an arithmetic number, because the mean of its divisors is an integer number (571200237).

Almost surely, 2^1142400473 is an apocalyptic number.

It is an amenable number.

1142400473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142400473 is an equidigital number, since it uses as much as digits as its factorization.

1142400473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 1142400473 is about 33799.4152760074. The cubic root of 1142400473 is about 1045.3766407121.

Adding to 1142400473 its reverse (3740042411), we get a palindrome (4882442884).

The spelling of 1142400473 in words is "one billion, one hundred forty-two million, four hundred thousand, four hundred seventy-three".