61256124 has 72 divisors (see below), whose sum is σ = 161441280. Its totient is φ = 19562400.

The previous prime is 61256113. The next prime is 61256137. The reversal of 61256124 is 42165216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145987 + ... + 146405.

It is an arithmetic number, because the mean of its divisors is an integer number (2242240).

Almost surely, 2^61256124 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 61256124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80720640).

61256124 is an abundant number, since it is smaller than the sum of its proper divisors (100185156).

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

61256124 is a wasteful number, since it uses less digits than its factorization.

61256124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591 (or 586 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 61256124 is about 7826.6291594786. The cubic root of 61256124 is about 394.1998951308.

The spelling of 61256124 in words is "sixty-one million, two hundred fifty-six thousand, one hundred twenty-four".