140132731 has 2 divisors, whose sum is σ = 140132732. Its totient is φ = 140132730.

The previous prime is 140132719. The next prime is 140132737. The reversal of 140132731 is 137231041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140132731 - 2¹⁵ = 140099963 is a prime.

It is a super-2 number, since 2×140132731² = 39274364595036722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (140132737) 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 as a sum of consecutive naturals, namely, 70066365 + 70066366.

It is an arithmetic number, because the mean of its divisors is an integer number (70066366).

Almost surely, 2^140132731 is an apocalyptic number.

140132731 is a deficient number, since it is larger than the sum of its proper divisors (1).

140132731 is an equidigital number, since it uses as much as digits as its factorization.

140132731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 140132731 is about 11837.7671458768. The cubic root of 140132731 is about 519.4134547667.

Adding to 140132731 its reverse (137231041), we get a palindrome (277363772).

The spelling of 140132731 in words is "one hundred forty million, one hundred thirty-two thousand, seven hundred thirty-one".