61157836 has 12 divisors (see below), whose sum is σ = 107193240. Its totient is φ = 30531200.

The previous prime is 61157797. The next prime is 61157843. The reversal of 61157836 is 63875116.

61157836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 61157795 and 61157804.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8965 + ... + 14236.

It is an arithmetic number, because the mean of its divisors is an integer number (8932770).

Almost surely, 2^61157836 is an apocalyptic number.

It is an amenable number.

61157836 is a deficient number, since it is larger than the sum of its proper divisors (46035404).

61157836 is a wasteful number, since it uses less digits than its factorization.

61157836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23864 (or 23862 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 61157836 is about 7820.3475626087. The cubic root of 61157836 is about 393.9889455529.

The spelling of 61157836 in words is "sixty-one million, one hundred fifty-seven thousand, eight hundred thirty-six".