140552073 has 12 divisors (see below), whose sum is σ = 214962228. Its totient is φ = 88189440.

The previous prime is 140552051. The next prime is 140552077. The reversal of 140552073 is 370255041.

It is a happy number.

140552073 is a `hidden beast` number, since 1 + 40 + 552 + 0 + 73 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 85599504 + 54952569 = 9252^2 + 7413^2 .

It is not a de Polignac number, because 140552073 - 2⁹ = 140551561 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140552077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 459168 + ... + 459473.

It is an arithmetic number, because the mean of its divisors is an integer number (17913519).

Almost surely, 2^140552073 is an apocalyptic number.

It is an amenable number.

140552073 is a deficient number, since it is larger than the sum of its proper divisors (74410155).

140552073 is a wasteful number, since it uses less digits than its factorization.

140552073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918664 (or 918661 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 140552073 is about 11855.4659545713. The cubic root of 140552073 is about 519.9310473168.

The spelling of 140552073 in words is "one hundred forty million, five hundred fifty-two thousand, seventy-three".