140192231 has 2 divisors, whose sum is σ = 140192232. Its totient is φ = 140192230.

The previous prime is 140192219. The next prime is 140192267. The reversal of 140192231 is 132291041.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140192231 is a prime.

It is a super-2 number, since 2×140192231² = 39307723265514722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 140192197 and 140192206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140192131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70096115 + 70096116.

It is an arithmetic number, because the mean of its divisors is an integer number (70096116).

Almost surely, 2^140192231 is an apocalyptic number.

140192231 is a deficient number, since it is larger than the sum of its proper divisors (1).

140192231 is an equidigital number, since it uses as much as digits as its factorization.

140192231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 140192231 is about 11840.2800220265. The cubic root of 140192231 is about 519.4869582403.

The spelling of 140192231 in words is "one hundred forty million, one hundred ninety-two thousand, two hundred thirty-one".