1405948273 has 2 divisors, whose sum is σ = 1405948274. Its totient is φ = 1405948272.

The previous prime is 1405948259. The next prime is 1405948277. The reversal of 1405948273 is 3728495041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1260818064 + 145130209 = 35508^2 + 12047^2 .

It is a cyclic number.

It is not a de Polignac number, because 1405948273 - 2⁹ = 1405947761 is a prime.

It is not a weakly prime, because it can be changed into another prime (1405948277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702974136 + 702974137.

It is an arithmetic number, because the mean of its divisors is an integer number (702974137).

Almost surely, 2^1405948273 is an apocalyptic number.

It is an amenable number.

1405948273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405948273 is an equidigital number, since it uses as much as digits as its factorization.

1405948273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 1405948273 is about 37495.9767575136. The cubic root of 1405948273 is about 1120.2710528598.

The spelling of 1405948273 in words is "one billion, four hundred five million, nine hundred forty-eight thousand, two hundred seventy-three".