1850321153 has 2 divisors, whose sum is σ = 1850321154. Its totient is φ = 1850321152.

The previous prime is 1850321029. The next prime is 1850321201. The reversal of 1850321153 is 3511230581.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1849602049 + 719104 = 43007^2 + 848^2 .

It is a cyclic number.

It is not a de Polignac number, because 1850321153 - 2¹⁸ = 1850059009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1850321453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 925160576 + 925160577.

It is an arithmetic number, because the mean of its divisors is an integer number (925160577).

Almost surely, 2^1850321153 is an apocalyptic number.

It is an amenable number.

1850321153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1850321153 is an equidigital number, since it uses as much as digits as its factorization.

1850321153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 1850321153 is about 43015.3595009969. The cubic root of 1850321153 is about 1227.6720577131.

The spelling of 1850321153 in words is "one billion, eight hundred fifty million, three hundred twenty-one thousand, one hundred fifty-three".