140654746 has 4 divisors (see below), whose sum is σ = 210982122. Its totient is φ = 70327372.

The previous prime is 140654743. The next prime is 140654747. The reversal of 140654746 is 647456041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 647456041 = 67 ⋅9663523.

It can be written as a sum of positive squares in only one way, i.e., 127441521 + 13213225 = 11289^2 + 3635^2 .

It is not an unprimeable number, because it can be changed into a prime (140654741) 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, 35163685 + ... + 35163688.

Almost surely, 2^140654746 is an apocalyptic number.

140654746 is a deficient number, since it is larger than the sum of its proper divisors (70327376).

140654746 is an equidigital number, since it uses as much as digits as its factorization.

140654746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70327375.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 140654746 is about 11859.7953607978. The cubic root of 140654746 is about 520.0576193548.

The spelling of 140654746 in words is "one hundred forty million, six hundred fifty-four thousand, seven hundred forty-six".