140221412 has 6 divisors (see below), whose sum is σ = 245387478. Its totient is φ = 70110704.

The previous prime is 140221397. The next prime is 140221439. The reversal of 140221412 is 214122041.

It can be written as a sum of positive squares in only one way, i.e., 87310336 + 52911076 = 9344^2 + 7274^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17527673 + ... + 17527680.

It is an arithmetic number, because the mean of its divisors is an integer number (40897913).

Almost surely, 2^140221412 is an apocalyptic number.

It is an amenable number.

140221412 is a deficient number, since it is larger than the sum of its proper divisors (105166066).

140221412 is a wasteful number, since it uses less digits than its factorization.

140221412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35055357 (or 35055355 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 140221412 is about 11841.5122345079. The cubic root of 140221412 is about 519.5229994607.

Adding to 140221412 its reverse (214122041), we get a palindrome (354343453).

The spelling of 140221412 in words is "one hundred forty million, two hundred twenty-one thousand, four hundred twelve".