140731016 has 16 divisors (see below), whose sum is σ = 264102540. Its totient is φ = 70303680.

The previous prime is 140730971. The next prime is 140731057. The reversal of 140731016 is 610137041.

It can be written as a sum of positive squares in 2 ways, for example, as 133494916 + 7236100 = 11554^2 + 2690^2 .

It is a junction number, because it is equal to n+sod(n) for n = 140730982 and 140731000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2786 + ... + 17006.

Almost surely, 2^140731016 is an apocalyptic number.

It is an amenable number.

140731016 is a deficient number, since it is larger than the sum of its proper divisors (123371524).

140731016 is a wasteful number, since it uses less digits than its factorization.

140731016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15464 (or 15460 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 140731016 is about 11863.0104105155. The cubic root of 140731016 is about 520.1516027397.

Adding to 140731016 its reverse (610137041), we get a palindrome (750868057).

It can be divided in two parts, 1407 and 31016, that added together give a palindrome (32423).

The spelling of 140731016 in words is "one hundred forty million, seven hundred thirty-one thousand, sixteen".