61143360 has 56 divisors (see below), whose sum is σ = 194133216. Its totient is φ = 16304640.

The previous prime is 61143359. The next prime is 61143367. The reversal of 61143360 is 6334116.

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

It is a self number, because there is not a number n which added to its sum of digits gives 61143360.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61143367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30886 + ... + 32805.

Almost surely, 2^61143360 is an apocalyptic number.

61143360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61143360 is an abundant number, since it is smaller than the sum of its proper divisors (132989856).

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

61143360 is a wasteful number, since it uses less digits than its factorization.

61143360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63711 (or 63701 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 61143360 is about 7819.4219735221. The cubic root of 61143360 is about 393.9578575005.

Adding to 61143360 its reverse (6334116), we get a palindrome (67477476).

The spelling of 61143360 in words is "sixty-one million, one hundred forty-three thousand, three hundred sixty".