61334520 has 64 divisors (see below), whose sum is σ = 198162720. Its totient is φ = 15097344.

The previous prime is 61334519. The next prime is 61334531. The reversal of 61334520 is 2543316.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18099 + ... + 21218.

Almost surely, 2^61334520 is an apocalyptic number.

61334520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61334520 is an abundant number, since it is smaller than the sum of its proper divisors (136828200).

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

61334520 is a wasteful number, since it uses less digits than its factorization.

61334520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39344 (or 39340 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 61334520 is about 7831.6358444453. The cubic root of 61334520 is about 394.3679900017.

Adding to 61334520 its reverse (2543316), we get a palindrome (63877836).

The spelling of 61334520 in words is "sixty-one million, three hundred thirty-four thousand, five hundred twenty".