140314531 has 16 divisors (see below), whose sum is σ = 164256768. Its totient is φ = 117381600.

The previous prime is 140314529. The next prime is 140314561. The reversal of 140314531 is 135413041.

It is not a de Polignac number, because 140314531 - 2¹ = 140314529 is a prime.

It is a super-2 number, since 2×140314531² = 39376335219499922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140314561) 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, 49821 + ... + 52561.

It is an arithmetic number, because the mean of its divisors is an integer number (10266048).

Almost surely, 2^140314531 is an apocalyptic number.

140314531 is a deficient number, since it is larger than the sum of its proper divisors (23942237).

140314531 is a wasteful number, since it uses less digits than its factorization.

140314531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2922.

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

The square root of 140314531 is about 11845.4434699592. The cubic root of 140314531 is about 519.6379765685.

Adding to 140314531 its reverse (135413041), we get a palindrome (275727572).

The spelling of 140314531 in words is "one hundred forty million, three hundred fourteen thousand, five hundred thirty-one".