140637453 has 16 divisors (see below), whose sum is σ = 206260032. Its totient is φ = 85232400.

The previous prime is 140637451. The next prime is 140637509. The reversal of 140637453 is 354736041.

It is not a de Polignac number, because 140637453 - 2¹ = 140637451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140637451) 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, 13618 + ... + 21603.

It is an arithmetic number, because the mean of its divisors is an integer number (12891252).

Almost surely, 2^140637453 is an apocalyptic number.

It is an amenable number.

140637453 is a deficient number, since it is larger than the sum of its proper divisors (65622579).

140637453 is an equidigital number, since it uses as much as digits as its factorization.

140637453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35257 (or 35235 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 140637453 is about 11859.0662785904. The cubic root of 140637453 is about 520.0363054040.

The spelling of 140637453 in words is "one hundred forty million, six hundred thirty-seven thousand, four hundred fifty-three".