140368919412121 has 9 divisors (see below), whose sum is σ = 140771885809279. Its totient is φ = 139967103343936.

The previous prime is 140368919412109. The next prime is 140368919412149. The reversal of 140368919412121 is 121214919863041.

The square root of 140368919412121 is 11847739.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 57027795305625 + 83341124106496 = 7551675^2 + 9129136^2 .

It is not a de Polignac number, because 140368919412121 - 2⁵ = 140368919412089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140368919412151) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4182235086 + ... + 4182268648.

Almost surely, 2^{140368919412121} is an apocalyptic number.

140368919412121 is the 11847739-th square number.

140368919412121 is the 5923870-th centered octagonal number.

It is an amenable number.

140368919412121 is a deficient number, since it is larger than the sum of its proper divisors (402966397158).

140368919412121 is an frugal number, since it uses more digits than its factorization.

140368919412121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67832 (or 33916 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 52.

The spelling of 140368919412121 in words is "one hundred forty trillion, three hundred sixty-eight billion, nine hundred nineteen million, four hundred twelve thousand, one hundred twenty-one".