140142213 has 12 divisors (see below), whose sum is σ = 203070348. Its totient is φ = 93131520.

The previous prime is 140142173. The next prime is 140142251. The reversal of 140142213 is 312241041.

It can be written as a sum of positive squares in 2 ways, for example, as 8191044 + 131951169 = 2862^2 + 11487^2 .

It is not a de Polignac number, because 140142213 - 2¹³ = 140134021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140142113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21708 + ... + 27413.

It is an arithmetic number, because the mean of its divisors is an integer number (16922529).

Almost surely, 2^140142213 is an apocalyptic number.

It is an amenable number.

140142213 is a deficient number, since it is larger than the sum of its proper divisors (62928135).

140142213 is a wasteful number, since it uses less digits than its factorization.

140142213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49444 (or 49441 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 140142213 is about 11838.1676369276. The cubic root of 140142213 is about 519.4251697725.

Adding to 140142213 its reverse (312241041), we get a palindrome (452383254).

The spelling of 140142213 in words is "one hundred forty million, one hundred forty-two thousand, two hundred thirteen".