61900136 has 16 divisors (see below), whose sum is σ = 116151840. Its totient is φ = 30926320.

The previous prime is 61900133. The next prime is 61900151. The reversal of 61900136 is 63100916.

It is not an unprimeable number, because it can be changed into a prime (61900133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13445 + ... + 17451.

It is an arithmetic number, because the mean of its divisors is an integer number (7259490).

Almost surely, 2^61900136 is an apocalyptic number.

It is an amenable number.

61900136 is a deficient number, since it is larger than the sum of its proper divisors (54251704).

61900136 is a wasteful number, since it uses less digits than its factorization.

61900136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5944 (or 5940 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 61900136 is about 7867.6639480852. The cubic root of 61900136 is about 395.5765462964.

The spelling of 61900136 in words is "sixty-one million, nine hundred thousand, one hundred thirty-six".