140222445 has 16 divisors (see below), whose sum is σ = 244752192. Its totient is φ = 67986560.

The previous prime is 140222431. The next prime is 140222447. The reversal of 140222445 is 544222041.

It is a happy number.

It is not a de Polignac number, because 140222445 - 2⁷ = 140222317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140222447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424752 + ... + 425081.

It is an arithmetic number, because the mean of its divisors is an integer number (15297012).

Almost surely, 2^140222445 is an apocalyptic number.

140222445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140222445 is a deficient number, since it is larger than the sum of its proper divisors (104529747).

140222445 is a wasteful number, since it uses less digits than its factorization.

140222445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849852.

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 140222445 is about 11841.5558521674. Note that the first 3 decimals coincide. The cubic root of 140222445 is about 519.5242752191.

Adding to 140222445 its reverse (544222041), we get a palindrome (684444486).

The spelling of 140222445 in words is "one hundred forty million, two hundred twenty-two thousand, four hundred forty-five".