140022645 has 24 divisors (see below), whose sum is σ = 260614944. Its totient is φ = 64010016.

The previous prime is 140022637. The next prime is 140022671. The reversal of 140022645 is 546220041.

It is not a de Polignac number, because 140022645 - 2³ = 140022637 is a prime.

It is a super-2 number, since 2×140022645² = 39212682225592050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 94519 + ... + 95988.

It is an arithmetic number, because the mean of its divisors is an integer number (10858956).

Almost surely, 2^140022645 is an apocalyptic number.

140022645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140022645 is a deficient number, since it is larger than the sum of its proper divisors (120592299).

140022645 is a wasteful number, since it uses less digits than its factorization.

140022645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190529 (or 190522 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 140022645 is about 11833.1164534116. The cubic root of 140022645 is about 519.2774048732.

Adding to 140022645 its reverse (546220041), we get a palindrome (686242686).

The spelling of 140022645 in words is "one hundred forty million, twenty-two thousand, six hundred forty-five".