140497953 has 16 divisors (see below), whose sum is σ = 194347200. Its totient is φ = 90175680.

The previous prime is 140497933. The next prime is 140497957. The reversal of 140497953 is 359794041.

It is not a de Polignac number, because 140497953 - 2⁸ = 140497697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140497957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30843 + ... + 35103.

It is an arithmetic number, because the mean of its divisors is an integer number (12146700).

Almost surely, 2^140497953 is an apocalyptic number.

It is an amenable number.

140497953 is a deficient number, since it is larger than the sum of its proper divisors (53849247).

140497953 is a wasteful number, since it uses less digits than its factorization.

140497953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4672.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 140497953 is about 11853.1832433317. The cubic root of 140497953 is about 519.8643050765.

The spelling of 140497953 in words is "one hundred forty million, four hundred ninety-seven thousand, nine hundred fifty-three".