140140520210 has 8 divisors (see below), whose sum is σ = 252252936396. Its totient is φ = 56056208080.

The previous prime is 140140520209. The next prime is 140140520213. The reversal of 140140520210 is 12025041041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 121401374329 + 18739145881 = 348427^2 + 136891^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (140140520213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7007026001 + ... + 7007026020.

Almost surely, 2^140140520210 is an apocalyptic number.

140140520210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140140520210 is a deficient number, since it is larger than the sum of its proper divisors (112112416186).

140140520210 is a wasteful number, since it uses less digits than its factorization.

140140520210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14014052028.

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 140140520210 its reverse (12025041041), we get a palindrome (152165561251).

The spelling of 140140520210 in words is "one hundred forty billion, one hundred forty million, five hundred twenty thousand, two hundred ten".