3140530421 has 4 divisors (see below), whose sum is σ = 3589177632. Its totient is φ = 2691883212.

The previous prime is 3140530417. The next prime is 3140530429. The reversal of 3140530421 is 1240350413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1240350413 = 17 ⋅72961789.

It is a cyclic number.

It is not a de Polignac number, because 3140530421 - 2² = 3140530417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3140530429) 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 3 ways as a sum of consecutive naturals, for example, 224323595 + ... + 224323608.

It is an arithmetic number, because the mean of its divisors is an integer number (897294408).

Almost surely, 2^3140530421 is an apocalyptic number.

It is an amenable number.

3140530421 is a deficient number, since it is larger than the sum of its proper divisors (448647211).

3140530421 is an equidigital number, since it uses as much as digits as its factorization.

3140530421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448647210.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 3140530421 is about 56040.4355889567. The cubic root of 3140530421 is about 1464.4268001065.

Adding to 3140530421 its reverse (1240350413), we get a palindrome (4380880834).

The spelling of 3140530421 in words is "three billion, one hundred forty million, five hundred thirty thousand, four hundred twenty-one".