140956977 has 24 divisors (see below), whose sum is σ = 219151776. Its totient is φ = 80353728.

The previous prime is 140956961. The next prime is 140956987. The reversal of 140956977 is 779659041.

It is a happy number.

It is not a de Polignac number, because 140956977 - 2⁴ = 140956961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140956987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79533 + ... + 81285.

It is an arithmetic number, because the mean of its divisors is an integer number (9131324).

Almost surely, 2^140956977 is an apocalyptic number.

It is an amenable number.

140956977 is a deficient number, since it is larger than the sum of its proper divisors (78194799).

140956977 is a wasteful number, since it uses less digits than its factorization.

140956977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2317 (or 2310 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 48.

The square root of 140956977 is about 11872.5303537199. The cubic root of 140956977 is about 520.4298430561.

The spelling of 140956977 in words is "one hundred forty million, nine hundred fifty-six thousand, nine hundred seventy-seven".