140473693 has 2 divisors, whose sum is σ = 140473694. Its totient is φ = 140473692.

The previous prime is 140473687. The next prime is 140473727. The reversal of 140473693 is 396374041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118962649 + 21511044 = 10907^2 + 4638^2 .

It is a cyclic number.

It is not a de Polignac number, because 140473693 - 2⁵ = 140473661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140473633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70236846 + 70236847.

It is an arithmetic number, because the mean of its divisors is an integer number (70236847).

Almost surely, 2^140473693 is an apocalyptic number.

It is an amenable number.

140473693 is a deficient number, since it is larger than the sum of its proper divisors (1).

140473693 is an equidigital number, since it uses as much as digits as its factorization.

140473693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 140473693 is about 11852.1598453615. The cubic root of 140473693 is about 519.8343814281.

The spelling of 140473693 in words is "one hundred forty million, four hundred seventy-three thousand, six hundred ninety-three".