140230436 has 6 divisors (see below), whose sum is σ = 245403270. Its totient is φ = 70115216.

The previous prime is 140230427. The next prime is 140230459. The reversal of 140230436 is 634032041.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 135862336 + 4368100 = 11656^2 + 2090^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17528801 + ... + 17528808.

It is an arithmetic number, because the mean of its divisors is an integer number (40900545).

Almost surely, 2^140230436 is an apocalyptic number.

It is an amenable number.

140230436 is a deficient number, since it is larger than the sum of its proper divisors (105172834).

140230436 is a wasteful number, since it uses less digits than its factorization.

140230436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35057613 (or 35057611 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 140230436 is about 11841.8932607924. The cubic root of 140230436 is about 519.5341439188.

Adding to 140230436 its reverse (634032041), we get a palindrome (774262477).

The spelling of 140230436 in words is "one hundred forty million, two hundred thirty thousand, four hundred thirty-six".