61811124 has 48 divisors (see below), whose sum is σ = 149140992. Its totient is φ = 19912032.

The previous prime is 61811119. The next prime is 61811131. The reversal of 61811124 is 42111816.

It is a junction number, because it is equal to n+sod(n) for n = 61811094 and 61811103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52567 + ... + 53729.

It is an arithmetic number, because the mean of its divisors is an integer number (3107104).

Almost surely, 2^61811124 is an apocalyptic number.

It is an amenable number.

61811124 is an abundant number, since it is smaller than the sum of its proper divisors (87329868).

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

61811124 is a wasteful number, since it uses less digits than its factorization.

61811124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316 (or 1314 counting only the distinct ones).

The product of its digits is 384, while the sum is 24.

The square root of 61811124 is about 7862.0050877623. The cubic root of 61811124 is about 395.3868431548.

The spelling of 61811124 in words is "sixty-one million, eight hundred eleven thousand, one hundred twenty-four".