1212040141 has 8 divisors (see below), whose sum is σ = 1306922904. Its totient is φ = 1117392960.

The previous prime is 1212040133. The next prime is 1212040163. The reversal of 1212040141 is 1410402121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11417641 + 1200622500 = 3379^2 + 34650^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1212040141 - 2³ = 1212040133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212040241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48130 + ... + 68851.

It is an arithmetic number, because the mean of its divisors is an integer number (163365363).

Almost surely, 2^1212040141 is an apocalyptic number.

It is an amenable number.

1212040141 is a deficient number, since it is larger than the sum of its proper divisors (94882763).

1212040141 is a wasteful number, since it uses less digits than its factorization.

1212040141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117791.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1212040141 is about 34814.3668763343. The cubic root of 1212040141 is about 1066.2007927257.

Adding to 1212040141 its reverse (1410402121), we get a palindrome (2622442262).

The spelling of 1212040141 in words is "one billion, two hundred twelve million, forty thousand, one hundred forty-one".