61143036 has 24 divisors (see below), whose sum is σ = 147270144. Its totient is φ = 19723440.

The previous prime is 61143031. The next prime is 61143037. The reversal of 61143036 is 63034116.

It is a junction number, because it is equal to n+sod(n) for n = 61142997 and 61143015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61143031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81810 + ... + 82553.

It is an arithmetic number, because the mean of its divisors is an integer number (6136256).

Almost surely, 2^61143036 is an apocalyptic number.

It is an amenable number.

61143036 is an abundant number, since it is smaller than the sum of its proper divisors (86127108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61143036 is a wasteful number, since it uses less digits than its factorization.

61143036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164401 (or 164399 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 61143036 is about 7819.4012558507. The cubic root of 61143036 is about 393.9571616355.

The spelling of 61143036 in words is "sixty-one million, one hundred forty-three thousand, thirty-six".