140603977 has 4 divisors (see below), whose sum is σ = 145452420. Its totient is φ = 135755536.

The previous prime is 140603951. The next prime is 140603987. The reversal of 140603977 is 779306041.

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

It can be written as a sum of positive squares in 2 ways, for example, as 32672656 + 107931321 = 5716^2 + 10389^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140603977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140603987) 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, 2424178 + ... + 2424235.

It is an arithmetic number, because the mean of its divisors is an integer number (36363105).

Almost surely, 2^140603977 is an apocalyptic number.

It is an amenable number.

140603977 is a deficient number, since it is larger than the sum of its proper divisors (4848443).

140603977 is an equidigital number, since it uses as much as digits as its factorization.

140603977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4848442.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 140603977 is about 11857.6547849902. The cubic root of 140603977 is about 519.9950406332.

The spelling of 140603977 in words is "one hundred forty million, six hundred three thousand, nine hundred seventy-seven".