61543036 has 6 divisors (see below), whose sum is σ = 107700320. Its totient is φ = 30771516.

The previous prime is 61543021. The next prime is 61543049. The reversal of 61543036 is 63034516.

It is a junction number, because it is equal to n+sod(n) for n = 61542995 and 61543013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7692876 + ... + 7692883.

Almost surely, 2^61543036 is an apocalyptic number.

It is an amenable number.

61543036 is a deficient number, since it is larger than the sum of its proper divisors (46157284).

61543036 is a wasteful number, since it uses less digits than its factorization.

61543036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15385763 (or 15385761 counting only the distinct ones).

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

The square root of 61543036 is about 7844.9369659673. The cubic root of 61543036 is about 394.8143891075.

The spelling of 61543036 in words is "sixty-one million, five hundred forty-three thousand, thirty-six".