140463761 has 4 divisors (see below), whose sum is σ = 140817972. Its totient is φ = 140109552.

The previous prime is 140463749. The next prime is 140463767. The reversal of 140463761 is 167364041.

140463761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 107516161 + 32947600 = 10369^2 + 5740^2 .

It is a cyclic number.

It is not a de Polignac number, because 140463761 - 2¹⁸ = 140201617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140463767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176510 + ... + 177303.

It is an arithmetic number, because the mean of its divisors is an integer number (35204493).

Almost surely, 2^140463761 is an apocalyptic number.

It is an amenable number.

140463761 is a deficient number, since it is larger than the sum of its proper divisors (354211).

140463761 is an equidigital number, since it uses as much as digits as its factorization.

140463761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354210.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 140463761 is about 11851.7408425935. The cubic root of 140463761 is about 519.8221297468.

The spelling of 140463761 in words is "one hundred forty million, four hundred sixty-three thousand, seven hundred sixty-one".