140634433 has 8 divisors (see below), whose sum is σ = 141561000. Its totient is φ = 139711488.

The previous prime is 140634401. The next prime is 140634479. The reversal of 140634433 is 334436041.

It can be written as a sum of positive squares in 4 ways, for example, as 59490369 + 81144064 = 7713^2 + 9008^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140634433 - 2⁵ = 140634401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140634233) 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 7 ways as a sum of consecutive naturals, for example, 131023 + ... + 132091.

It is an arithmetic number, because the mean of its divisors is an integer number (17695125).

Almost surely, 2^140634433 is an apocalyptic number.

It is an amenable number.

140634433 is a deficient number, since it is larger than the sum of its proper divisors (926567).

140634433 is a wasteful number, since it uses less digits than its factorization.

140634433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811.

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 140634433 is about 11858.9389491640. The cubic root of 140634433 is about 520.0325830175.

It can be divided in two parts, 14063 and 4433, that added together give a square (18496 = 136²).

The spelling of 140634433 in words is "one hundred forty million, six hundred thirty-four thousand, four hundred thirty-three".