10140545421 has 6 divisors (see below), whose sum is σ = 14647454510. Its totient is φ = 6760363608.

The previous prime is 10140545419. The next prime is 10140545447. The reversal of 10140545421 is 12454504101.

10140545421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9024050025 + 1116495396 = 94995^2 + 33414^2 .

It is not a de Polignac number, because 10140545421 - 2¹ = 10140545419 is a prime.

It is a super-2 number, since 2×10140545421² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10140545411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 563363626 + ... + 563363643.

Almost surely, 2^10140545421 is an apocalyptic number.

It is an amenable number.

10140545421 is a deficient number, since it is larger than the sum of its proper divisors (4506909089).

10140545421 is a wasteful number, since it uses less digits than its factorization.

10140545421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126727275 (or 1126727272 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The spelling of 10140545421 in words is "ten billion, one hundred forty million, five hundred forty-five thousand, four hundred twenty-one".