140505488248121 has 4 divisors (see below), whose sum is σ = 141088498573044. Its totient is φ = 139922477923200.

The previous prime is 140505488248117. The next prime is 140505488248133. The reversal of 140505488248121 is 121842884505041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 116132111684521 + 24373376563600 = 10776461^2 + 4936940^2 .

It is a cyclic number.

It is not a de Polignac number, because 140505488248121 - 2² = 140505488248117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140505488248921) 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, 291505162100 + ... + 291505162581.

It is an arithmetic number, because the mean of its divisors is an integer number (35272124643261).

Almost surely, 2^{140505488248121} is an apocalyptic number.

It is an amenable number.

140505488248121 is a deficient number, since it is larger than the sum of its proper divisors (583010324923).

140505488248121 is an equidigital number, since it uses as much as digits as its factorization.

140505488248121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583010324922.

The product of its (nonzero) digits is 3276800, while the sum is 53.

The spelling of 140505488248121 in words is "one hundred forty trillion, five hundred five billion, four hundred eighty-eight million, two hundred forty-eight thousand, one hundred twenty-one".