1020154393 has 2 divisors, whose sum is σ = 1020154394. Its totient is φ = 1020154392.

The previous prime is 1020154381. The next prime is 1020154459. The reversal of 1020154393 is 3934510201.

1020154393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 516062089 + 504092304 = 22717^2 + 22452^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020154393 - 2¹³ = 1020146201 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020154313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510077196 + 510077197.

It is an arithmetic number, because the mean of its divisors is an integer number (510077197).

Almost surely, 2^1020154393 is an apocalyptic number.

It is an amenable number.

1020154393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020154393 is an equidigital number, since it uses as much as digits as its factorization.

1020154393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 1020154393 is about 31939.8558700568. The cubic root of 1020154393 is about 1006.6734963768.

Adding to 1020154393 its reverse (3934510201), we get a palindrome (4954664594).

It can be divided in two parts, 10201543 and 93, that added together give a square (10201636 = 3194²).

The spelling of 1020154393 in words is "one billion, twenty million, one hundred fifty-four thousand, three hundred ninety-three".