140341531 has 8 divisors (see below), whose sum is σ = 153289584. Its totient is φ = 127425120.

The previous prime is 140341529. The next prime is 140341547. The reversal of 140341531 is 135143041.

140341531 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 140341531 - 2¹ = 140341529 is a prime.

It is a super-2 number, since 2×140341531² = 39391490646847922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140341571) 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, 1905 + ... + 16861.

It is an arithmetic number, because the mean of its divisors is an integer number (19161198).

Almost surely, 2^140341531 is an apocalyptic number.

140341531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

140341531 is a deficient number, since it is larger than the sum of its proper divisors (12948053).

140341531 is a wasteful number, since it uses less digits than its factorization.

140341531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15821.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 140341531 is about 11846.5830938714. The cubic root of 140341531 is about 519.6713048475.

Adding to 140341531 its reverse (135143041), we get a palindrome (275484572).

The spelling of 140341531 in words is "one hundred forty million, three hundred forty-one thousand, five hundred thirty-one".