140406053 has 8 divisors (see below), whose sum is σ = 146693376. Its totient is φ = 134134000.

The previous prime is 140406041. The next prime is 140406073. The reversal of 140406053 is 350604041.

It is a happy number.

140406053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 140406053 - 2¹⁰ = 140405029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140406073) 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, 17603 + ... + 24303.

It is an arithmetic number, because the mean of its divisors is an integer number (18336672).

Almost surely, 2^140406053 is an apocalyptic number.

It is an amenable number.

140406053 is a deficient number, since it is larger than the sum of its proper divisors (6287323).

140406053 is an equidigital number, since it uses as much as digits as its factorization.

140406053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7635.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 140406053 is about 11849.3060134339. The cubic root of 140406053 is about 519.7509322501.

The spelling of 140406053 in words is "one hundred forty million, four hundred six thousand, fifty-three".