140426231 has 8 divisors (see below), whose sum is σ = 155291664. Its totient is φ = 125910720.

The previous prime is 140426227. The next prime is 140426243. The reversal of 140426231 is 132624041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140426231 - 2² = 140426227 is a prime.

It is a super-2 number, since 2×140426231² = 39439052705730722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140426197 and 140426206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140426291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86636 + ... + 88241.

It is an arithmetic number, because the mean of its divisors is an integer number (19411458).

Almost surely, 2^140426231 is an apocalyptic number.

140426231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

140426231 is a deficient number, since it is larger than the sum of its proper divisors (14865433).

140426231 is a wasteful number, since it uses less digits than its factorization.

140426231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174961.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 140426231 is about 11850.1574251147. The cubic root of 140426231 is about 519.7758291633.

The spelling of 140426231 in words is "one hundred forty million, four hundred twenty-six thousand, two hundred thirty-one".