61125700 has 18 divisors (see below), whose sum is σ = 132642986. Its totient is φ = 24450240.

The previous prime is 61125637. The next prime is 61125703. The reversal of 61125700 is 752116.

It can be written as a sum of positive squares in 3 ways, for example, as 19342404 + 41783296 = 4398^2 + 6464^2 .

It is not an unprimeable number, because it can be changed into a prime (61125703) 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 5 ways as a sum of consecutive naturals, for example, 305529 + ... + 305728.

Almost surely, 2^61125700 is an apocalyptic number.

It is an amenable number.

61125700 is an abundant number, since it is smaller than the sum of its proper divisors (71517286).

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

61125700 is a wasteful number, since it uses less digits than its factorization.

61125700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611271 (or 611264 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 61125700 is about 7818.2926524913. The cubic root of 61125700 is about 393.9199249777.

Adding to 61125700 its reverse (752116), we get a palindrome (61877816).

The spelling of 61125700 in words is "sixty-one million, one hundred twenty-five thousand, seven hundred".