142880473 has 2 divisors, whose sum is σ = 142880474. Its totient is φ = 142880472.

The previous prime is 142880447. The next prime is 142880489. The reversal of 142880473 is 374088241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78287104 + 64593369 = 8848^2 + 8037^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142880473 is a prime.

It is not a weakly prime, because it can be changed into another prime (142883473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71440236 + 71440237.

It is an arithmetic number, because the mean of its divisors is an integer number (71440237).

Almost surely, 2^142880473 is an apocalyptic number.

It is an amenable number.

142880473 is a deficient number, since it is larger than the sum of its proper divisors (1).

142880473 is an equidigital number, since it uses as much as digits as its factorization.

142880473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 142880473 is about 11953.2620233976. The cubic root of 142880473 is about 522.7864144007.

The spelling of 142880473 in words is "one hundred forty-two million, eight hundred eighty thousand, four hundred seventy-three".