140503977 has 20 divisors (see below), whose sum is σ = 212427600. Its totient is φ = 92536344.

The previous prime is 140503973. The next prime is 140503991. The reversal of 140503977 is 779305041.

It is a happy number.

140503977 is a `hidden beast` number, since 140 + 503 + 9 + 7 + 7 = 666.

It is not a de Polignac number, because 140503977 - 2² = 140503973 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140503973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3727 + ... + 17172.

It is an arithmetic number, because the mean of its divisors is an integer number (10621380).

Almost surely, 2^140503977 is an apocalyptic number.

It is an amenable number.

140503977 is a deficient number, since it is larger than the sum of its proper divisors (71923623).

140503977 is an equidigital number, since it uses as much as digits as its factorization.

140503977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20994 (or 20985 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 140503977 is about 11853.4373495624. The cubic root of 140503977 is about 519.8717348830.

The spelling of 140503977 in words is "one hundred forty million, five hundred three thousand, nine hundred seventy-seven".