61142164 has 12 divisors (see below), whose sum is σ = 107245600. Its totient is φ = 30500568.

The previous prime is 61142161. The next prime is 61142189. The reversal of 61142164 is 46124116.

61142164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61142161) by changing a digit.

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, 15654 + ... + 19165.

Almost surely, 2^61142164 is an apocalyptic number.

It is an amenable number.

61142164 is a deficient number, since it is larger than the sum of its proper divisors (46103436).

61142164 is a wasteful number, since it uses less digits than its factorization.

61142164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35262 (or 35260 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 61142164 is about 7819.3454969070. The cubic root of 61142164 is about 393.9552888015.

The spelling of 61142164 in words is "sixty-one million, one hundred forty-two thousand, one hundred sixty-four".