140432131 has 16 divisors (see below), whose sum is σ = 166129920. Its totient is φ = 116195040.

The previous prime is 140432113. The next prime is 140432147. The reversal of 140432131 is 131234041.

It is a cyclic number.

It is not a de Polignac number, because 140432131 - 2⁹ = 140431619 is a prime.

It is a super-2 number, since 2×140432131² = 39442366834402322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140432099 and 140432108.

It is not an unprimeable number, because it can be changed into a prime (140432101) 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, 31860 + ... + 35998.

It is an arithmetic number, because the mean of its divisors is an integer number (10383120).

Almost surely, 2^140432131 is an apocalyptic number.

140432131 is a deficient number, since it is larger than the sum of its proper divisors (25697789).

140432131 is a wasteful number, since it uses less digits than its factorization.

140432131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4314.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 140432131 is about 11850.4063643404. The cubic root of 140432131 is about 519.7831085118.

Adding to 140432131 its reverse (131234041), we get a palindrome (271666172).

The spelling of 140432131 in words is "one hundred forty million, four hundred thirty-two thousand, one hundred thirty-one".