1403640193 has 2 divisors, whose sum is σ = 1403640194. Its totient is φ = 1403640192.

The previous prime is 1403640059. The next prime is 1403640239. The reversal of 1403640193 is 3910463041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1144333584 + 259306609 = 33828^2 + 16103^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1403640193 is a prime.

It is not a weakly prime, because it can be changed into another prime (1403640793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701820096 + 701820097.

It is an arithmetic number, because the mean of its divisors is an integer number (701820097).

Almost surely, 2^1403640193 is an apocalyptic number.

It is an amenable number.

1403640193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1403640193 is an equidigital number, since it uses as much as digits as its factorization.

1403640193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 1403640193 is about 37465.1864135226. The cubic root of 1403640193 is about 1119.6576847673.

The spelling of 1403640193 in words is "one billion, four hundred three million, six hundred forty thousand, one hundred ninety-three".