140750642 has 6 divisors (see below), whose sum is σ = 211151133. Its totient is φ = 70366932.

The previous prime is 140750579. The next prime is 140750647. The reversal of 140750642 is 246057041.

140750642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 118178641 + 22572001 = 10871^2 + 4751^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=8389.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140750647) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 12584 + ... + 20972.

Almost surely, 2^140750642 is an apocalyptic number.

140750642 is a deficient number, since it is larger than the sum of its proper divisors (70400491).

140750642 is an frugal number, since it uses more digits than its factorization.

140750642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16780 (or 8391 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 140750642 is about 11863.8375747479. The cubic root of 140750642 is about 520.1757813018.

The spelling of 140750642 in words is "one hundred forty million, seven hundred fifty thousand, six hundred forty-two".