140525454312421 has 24 divisors (see below), whose sum is σ = 155160648849024. Its totient is φ = 127118865533760.

The previous prime is 140525454312391. The next prime is 140525454312427. The reversal of 140525454312421 is 124213454525041.

It is not a de Polignac number, because 140525454312421 - 2¹⁵ = 140525454279653 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 (140525454312427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100307775 + ... + 101699068.

It is an arithmetic number, because the mean of its divisors is an integer number (6465027035376).

Almost surely, 2^{140525454312421} is an apocalyptic number.

It is an amenable number.

140525454312421 is a deficient number, since it is larger than the sum of its proper divisors (14635194536603).

140525454312421 is a wasteful number, since it uses less digits than its factorization.

140525454312421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202006969 (or 202006950 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 43.

The spelling of 140525454312421 in words is "one hundred forty trillion, five hundred twenty-five billion, four hundred fifty-four million, three hundred twelve thousand, four hundred twenty-one".