140566733 has 4 divisors (see below), whose sum is σ = 142949280. Its totient is φ = 138184188.

The previous prime is 140566711. The next prime is 140566781. The reversal of 140566733 is 337665041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 337665041 = 7 ⋅48237863.

It is a cyclic number.

It is not a de Polignac number, because 140566733 - 2¹⁰ = 140565709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140566693 and 140566702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140566793) 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 3 ways as a sum of consecutive naturals, for example, 1191185 + ... + 1191302.

It is an arithmetic number, because the mean of its divisors is an integer number (35737320).

Almost surely, 2^140566733 is an apocalyptic number.

It is an amenable number.

140566733 is a deficient number, since it is larger than the sum of its proper divisors (2382547).

140566733 is an equidigital number, since it uses as much as digits as its factorization.

140566733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382546.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 140566733 is about 11856.0842186617. The cubic root of 140566733 is about 519.9491234741.

The spelling of 140566733 in words is "one hundred forty million, five hundred sixty-six thousand, seven hundred thirty-three".