3144642531 has 8 divisors (see below), whose sum is σ = 4193751744. Its totient is φ = 2095980840.

The previous prime is 3144642493. The next prime is 3144642533. The reversal of 3144642531 is 1352464413.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3144642531 - 2¹⁸ = 3144380387 is a prime.

It is a super-2 number, since 2×3144642531² = 19777553295548171922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3144642492 and 3144642501.

It is not an unprimeable number, because it can be changed into a prime (3144642533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95125 + ... + 123846.

It is an arithmetic number, because the mean of its divisors is an integer number (524218968).

Almost surely, 2^3144642531 is an apocalyptic number.

3144642531 is a deficient number, since it is larger than the sum of its proper divisors (1049109213).

3144642531 is a wasteful number, since it uses less digits than its factorization.

3144642531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223761.

The product of its digits is 34560, while the sum is 33.

The square root of 3144642531 is about 56077.1123632450. The cubic root of 3144642531 is about 1465.0656792027.

The spelling of 3144642531 in words is "three billion, one hundred forty-four million, six hundred forty-two thousand, five hundred thirty-one".