140463231 has 16 divisors (see below), whose sum is σ = 206924544. Its totient is φ = 84301184.

The previous prime is 140463229. The next prime is 140463293. The reversal of 140463231 is 132364041.

It is a cyclic number.

It is not a de Polignac number, because 140463231 - 2¹ = 140463229 is a prime.

It is a super-2 number, since 2×140463231² = 39459838525918722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140463031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58701 + ... + 61046.

It is an arithmetic number, because the mean of its divisors is an integer number (12932784).

Almost surely, 2^140463231 is an apocalyptic number.

140463231 is a deficient number, since it is larger than the sum of its proper divisors (66461313).

140463231 is a wasteful number, since it uses less digits than its factorization.

140463231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119790.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 140463231 is about 11851.7184829880. The cubic root of 140463231 is about 519.8214759457.

The spelling of 140463231 in words is "one hundred forty million, four hundred sixty-three thousand, two hundred thirty-one".