3146530231 has 4 divisors (see below), whose sum is σ = 3388571032. Its totient is φ = 2904489432.

The previous prime is 3146530213. The next prime is 3146530237. The reversal of 3146530231 is 1320356413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1320356413 = 139 ⋅9498967.

It is not a de Polignac number, because 3146530231 - 2¹⁹ = 3146005943 is a prime.

It is a super-2 number, since 2×3146530231² = 19801304989193826722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3146530231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3146530237) 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, 121020381 + ... + 121020406.

It is an arithmetic number, because the mean of its divisors is an integer number (847142758).

Almost surely, 2^3146530231 is an apocalyptic number.

3146530231 is a deficient number, since it is larger than the sum of its proper divisors (242040801).

3146530231 is a wasteful number, since it uses less digits than its factorization.

3146530231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242040800.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 3146530231 is about 56093.9411255797. The cubic root of 3146530231 is about 1465.3587757154.

Adding to 3146530231 its reverse (1320356413), we get a palindrome (4466886644).

The spelling of 3146530231 in words is "three billion, one hundred forty-six million, five hundred thirty thousand, two hundred thirty-one".