61302136 has 48 divisors (see below), whose sum is σ = 141588000. Its totient is φ = 24724224.

The previous prime is 61302127. The next prime is 61302139. The reversal of 61302136 is 63120316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61302139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2065 + ... + 11263.

It is an arithmetic number, because the mean of its divisors is an integer number (2949750).

Almost surely, 2^61302136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61302136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70794000).

61302136 is an abundant number, since it is smaller than the sum of its proper divisors (80285864).

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

61302136 is a wasteful number, since it uses less digits than its factorization.

61302136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9236 (or 9225 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 61302136 is about 7829.5680596058. The cubic root of 61302136 is about 394.2985703593.

The spelling of 61302136 in words is "sixty-one million, three hundred two thousand, one hundred thirty-six".