61143034252 has 12 divisors (see below), whose sum is σ = 107061360616. Its totient is φ = 30554074080.

The previous prime is 61143034231. The next prime is 61143034273. The reversal of 61143034252 is 25243034116.

It is an interprime number because it is at equal distance from previous prime (61143034231) and next prime (61143034273).

It is an unprimeable number.

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, 4352874 + ... + 4366897.

Almost surely, 2^61143034252 is an apocalyptic number.

It is an amenable number.

61143034252 is a deficient number, since it is larger than the sum of its proper divisors (45918326364).

61143034252 is a wasteful number, since it uses less digits than its factorization.

61143034252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8721528 (or 8721526 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 61143034252 its reverse (25243034116), we get a palindrome (86386068368).

The spelling of 61143034252 in words is "sixty-one billion, one hundred forty-three million, thirty-four thousand, two hundred fifty-two".