140321230 has 32 divisors (see below), whose sum is σ = 305643456. Its totient is φ = 45279744.

The previous prime is 140321201. The next prime is 140321231. The reversal of 140321230 is 32123041.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140321231) 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, 57769 + ... + 60148.

It is an arithmetic number, because the mean of its divisors is an integer number (9551358).

Almost surely, 2^140321230 is an apocalyptic number.

140321230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140321230 is an abundant number, since it is smaller than the sum of its proper divisors (165322226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140321230 is a wasteful number, since it uses less digits than its factorization.

140321230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117948.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 140321230 is about 11845.7262335409. The cubic root of 140321230 is about 519.6462460836.

Adding to 140321230 its reverse (32123041), we get a palindrome (172444271).

The spelling of 140321230 in words is "one hundred forty million, three hundred twenty-one thousand, two hundred thirty".