140124213 has 6 divisors (see below), whose sum is σ = 202401654. Its totient is φ = 93416136.

The previous prime is 140124199. The next prime is 140124223. The reversal of 140124213 is 312421041.

It can be written as a sum of positive squares in only one way, i.e., 89529444 + 50594769 = 9462^2 + 7113^2 .

It is not a de Polignac number, because 140124213 - 2⁴ = 140124197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140124223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7784670 + ... + 7784687.

It is an arithmetic number, because the mean of its divisors is an integer number (33733609).

Almost surely, 2^140124213 is an apocalyptic number.

It is an amenable number.

140124213 is a deficient number, since it is larger than the sum of its proper divisors (62277441).

140124213 is a wasteful number, since it uses less digits than its factorization.

140124213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15569363 (or 15569360 counting only the distinct ones).

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

The square root of 140124213 is about 11837.4073597220. The cubic root of 140124213 is about 519.4029303317.

Adding to 140124213 its reverse (312421041), we get a palindrome (452545254).

It can be divided in two parts, 14012 and 4213, that added together give a square (18225 = 135²).

The spelling of 140124213 in words is "one hundred forty million, one hundred twenty-four thousand, two hundred thirteen".