1400545273 has 2 divisors, whose sum is σ = 1400545274. Its totient is φ = 1400545272.

The previous prime is 1400545243. The next prime is 1400545277. The reversal of 1400545273 is 3725450041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1357406649 + 43138624 = 36843^2 + 6568^2 .

It is an emirp because it is prime and its reverse (3725450041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1400545273 - 2⁵ = 1400545241 is a prime.

It is not a weakly prime, because it can be changed into another prime (1400545277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700272636 + 700272637.

It is an arithmetic number, because the mean of its divisors is an integer number (700272637).

Almost surely, 2^1400545273 is an apocalyptic number.

It is an amenable number.

1400545273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400545273 is an equidigital number, since it uses as much as digits as its factorization.

1400545273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 1400545273 is about 37423.8596753462. The cubic root of 1400545273 is about 1118.8341591527.

The spelling of 1400545273 in words is "one billion, four hundred million, five hundred forty-five thousand, two hundred seventy-three".