140334531 has 4 divisors (see below), whose sum is σ = 187112712. Its totient is φ = 93556352.

The previous prime is 140334529. The next prime is 140334547. The reversal of 140334531 is 135433041.

It is a happy number.

140334531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140334531 - 2¹ = 140334529 is a prime.

It is a super-2 number, since 2×140334531² = 39387561181979922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140334511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23389086 + ... + 23389091.

It is an arithmetic number, because the mean of its divisors is an integer number (46778178).

Almost surely, 2^140334531 is an apocalyptic number.

140334531 is a deficient number, since it is larger than the sum of its proper divisors (46778181).

140334531 is an equidigital number, since it uses as much as digits as its factorization.

140334531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46778180.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 140334531 is about 11846.2876463473. The cubic root of 140334531 is about 519.6626645931.

Adding to 140334531 its reverse (135433041), we get a palindrome (275767572).

The spelling of 140334531 in words is "one hundred forty million, three hundred thirty-four thousand, five hundred thirty-one".