140434553 has 16 divisors (see below), whose sum is σ = 166688256. Its totient is φ = 115810560.

The previous prime is 140434549. The next prime is 140434571. The reversal of 140434553 is 355434041.

It is a cyclic number.

It is not a de Polignac number, because 140434553 - 2² = 140434549 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140434523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17600 + ... + 24302.

It is an arithmetic number, because the mean of its divisors is an integer number (10418016).

Almost surely, 2^140434553 is an apocalyptic number.

It is an amenable number.

140434553 is a deficient number, since it is larger than the sum of its proper divisors (26253703).

140434553 is an equidigital number, since it uses as much as digits as its factorization.

140434553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6824.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 140434553 is about 11850.5085544883. The cubic root of 140434553 is about 519.7860966871.

Adding to 140434553 its reverse (355434041), we get a palindrome (495868594).

The spelling of 140434553 in words is "one hundred forty million, four hundred thirty-four thousand, five hundred fifty-three".