61231125 has 32 divisors (see below), whose sum is σ = 102435840. Its totient is φ = 32481600.

The previous prime is 61231123. The next prime is 61231133. The reversal of 61231125 is 52113216.

It is not a de Polignac number, because 61231125 - 2¹ = 61231123 is a prime.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61231123) 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 31 ways as a sum of consecutive naturals, for example, 100572 + ... + 101178.

It is an arithmetic number, because the mean of its divisors is an integer number (3201120).

Almost surely, 2^61231125 is an apocalyptic number.

It is an amenable number.

61231125 is a deficient number, since it is larger than the sum of its proper divisors (41204715).

61231125 is a wasteful number, since it uses less digits than its factorization.

61231125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894 (or 884 counting only the distinct ones).

The product of its digits is 360, while the sum is 21.

The square root of 61231125 is about 7825.0319488166. The cubic root of 61231125 is about 394.1462627024.

The spelling of 61231125 in words is "sixty-one million, two hundred thirty-one thousand, one hundred twenty-five".