140551634 has 4 divisors (see below), whose sum is σ = 210827454. Its totient is φ = 70275816.

The previous prime is 140551627. The next prime is 140551639. The reversal of 140551634 is 436155041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 140541025 + 10609 = 11855^2 + 103^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 140551597 and 140551606.

It is not an unprimeable number, because it can be changed into a prime (140551639) 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 as a sum of consecutive naturals, namely, 35137907 + ... + 35137910.

Almost surely, 2^140551634 is an apocalyptic number.

140551634 is a deficient number, since it is larger than the sum of its proper divisors (70275820).

140551634 is an equidigital number, since it uses as much as digits as its factorization.

140551634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70275819.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 140551634 is about 11855.4474398902. The cubic root of 140551634 is about 519.9305059991.

The spelling of 140551634 in words is "one hundred forty million, five hundred fifty-one thousand, six hundred thirty-four".