61124020 has 12 divisors (see below), whose sum is σ = 128360484. Its totient is φ = 24449600.

The previous prime is 61124003. The next prime is 61124023. The reversal of 61124020 is 2042116.

It can be written as a sum of positive squares in 2 ways, for example, as 7365796 + 53758224 = 2714^2 + 7332^2 .

It is a super-2 number, since 2×61124020² = 7472291641920800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61123985 and 61124003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61124023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1528081 + ... + 1528120.

It is an arithmetic number, because the mean of its divisors is an integer number (10696707).

Almost surely, 2^61124020 is an apocalyptic number.

It is an amenable number.

61124020 is an abundant number, since it is smaller than the sum of its proper divisors (67236464).

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

61124020 is a wasteful number, since it uses less digits than its factorization.

61124020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3056210 (or 3056208 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 61124020 is about 7818.1852114158. The cubic root of 61124020 is about 393.9163160672.

Adding to 61124020 its reverse (2042116), we get a palindrome (63166136).

The spelling of 61124020 in words is "sixty-one million, one hundred twenty-four thousand, twenty".