140609953 has 8 divisors (see below), whose sum is σ = 157538880. Its totient is φ = 124372080.

The previous prime is 140609933. The next prime is 140609969. The reversal of 140609953 is 359906041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140609953 - 2²⁵ = 107055521 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140609933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172333 + ... + 173146.

It is an arithmetic number, because the mean of its divisors is an integer number (19692360).

Almost surely, 2^140609953 is an apocalyptic number.

It is an amenable number.

140609953 is a deficient number, since it is larger than the sum of its proper divisors (16928927).

140609953 is a wasteful number, since it uses less digits than its factorization.

140609953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345527.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 140609953 is about 11857.9067714331. The cubic root of 140609953 is about 520.0024075332.

The spelling of 140609953 in words is "one hundred forty million, six hundred nine thousand, nine hundred fifty-three".