3143405242 has 4 divisors (see below), whose sum is σ = 4715107866. Its totient is φ = 1571702620.

The previous prime is 3143405231. The next prime is 3143405257. The reversal of 3143405242 is 2425043413.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3065947641 + 77457601 = 55371^2 + 8801^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3143405242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 785851309 + ... + 785851312.

Almost surely, 2^3143405242 is an apocalyptic number.

3143405242 is a deficient number, since it is larger than the sum of its proper divisors (1571702624).

3143405242 is a wasteful number, since it uses less digits than its factorization.

3143405242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571702623.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 3143405242 is about 56066.0792458328. The cubic root of 3143405242 is about 1464.8735060675.

Adding to 3143405242 its reverse (2425043413), we get a palindrome (5568448655).

The spelling of 3143405242 in words is "three billion, one hundred forty-three million, four hundred five thousand, two hundred forty-two".