140656047 has 16 divisors (see below), whose sum is σ = 215757312. Its totient is φ = 79840800.

The previous prime is 140656037. The next prime is 140656073. The reversal of 140656047 is 740656041.

It is not a de Polignac number, because 140656047 - 2¹¹ = 140653999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140655999 and 140656017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140656037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19008 + ... + 25349.

It is an arithmetic number, because the mean of its divisors is an integer number (13484832).

Almost surely, 2^140656047 is an apocalyptic number.

140656047 is a deficient number, since it is larger than the sum of its proper divisors (75101265).

140656047 is a wasteful number, since it uses less digits than its factorization.

140656047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44518.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 140656047 is about 11859.8502098467. The cubic root of 140656047 is about 520.0592227914.

The spelling of 140656047 in words is "one hundred forty million, six hundred fifty-six thousand, forty-seven".