140143245 has 16 divisors (see below), whose sum is σ = 244613952. Its totient is φ = 67948160.

The previous prime is 140143243. The next prime is 140143247. The reversal of 140143245 is 542341041.

It is an interprime number because it is at equal distance from previous prime (140143243) and next prime (140143247).

It is not a de Polignac number, because 140143245 - 2¹ = 140143243 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140143243) 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, 424512 + ... + 424841.

It is an arithmetic number, because the mean of its divisors is an integer number (15288372).

Almost surely, 2^140143245 is an apocalyptic number.

140143245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140143245 is a deficient number, since it is larger than the sum of its proper divisors (104470707).

140143245 is a wasteful number, since it uses less digits than its factorization.

140143245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849372.

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

The square root of 140143245 is about 11838.2112246741. The cubic root of 140143245 is about 519.4264447761.

Adding to 140143245 its reverse (542341041), we get a palindrome (682484286).

The spelling of 140143245 in words is "one hundred forty million, one hundred forty-three thousand, two hundred forty-five".