140121532252461 has 32 divisors (see below), whose sum is σ = 193073535083520. Its totient is φ = 90335407548800.

The previous prime is 140121532252459. The next prime is 140121532252519. The reversal of 140121532252461 is 164252235121041.

It is a cyclic number.

It is not a de Polignac number, because 140121532252461 - 2¹ = 140121532252459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140121534252461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3384615 + ... + 17079188.

It is an arithmetic number, because the mean of its divisors is an integer number (6033547971360).

Almost surely, 2^{140121532252461} is an apocalyptic number.

It is an amenable number.

140121532252461 is a deficient number, since it is larger than the sum of its proper divisors (52952002831059).

140121532252461 is a wasteful number, since it uses less digits than its factorization.

140121532252461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20464337.

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 140121532252461 in words is "one hundred forty trillion, one hundred twenty-one billion, five hundred thirty-two million, two hundred fifty-two thousand, four hundred sixty-one".