140907242 has 24 divisors (see below), whose sum is σ = 251872740. Its totient is φ = 58914240.

The previous prime is 140907241. The next prime is 140907251. The reversal of 140907242 is 242709041.

It can be written as a sum of positive squares in 2 ways, for example, as 140446201 + 461041 = 11851^2 + 679^2 .

It is not an unprimeable number, because it can be changed into a prime (140907241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13517 + ... + 21552.

Almost surely, 2^140907242 is an apocalyptic number.

140907242 is a deficient number, since it is larger than the sum of its proper divisors (110965498).

140907242 is a wasteful number, since it uses less digits than its factorization.

140907242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35126 (or 35119 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 140907242 is about 11870.4356280635. The cubic root of 140907242 is about 520.3686266868.

The spelling of 140907242 in words is "one hundred forty million, nine hundred seven thousand, two hundred forty-two".