61340180 has 24 divisors (see below), whose sum is σ = 140525280. Its totient is φ = 22305440.

The previous prime is 61340179. The next prime is 61340207. The reversal of 61340180 is 8104316.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139190 + ... + 139629.

It is an arithmetic number, because the mean of its divisors is an integer number (5855220).

Almost surely, 2^61340180 is an apocalyptic number.

It is an amenable number.

61340180 is an abundant number, since it is smaller than the sum of its proper divisors (79185100).

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

61340180 is a wasteful number, since it uses less digits than its factorization.

61340180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278839 (or 278837 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 61340180 is about 7831.9971910107. The cubic root of 61340180 is about 394.3801204961.

Adding to 61340180 its reverse (8104316), we get a palindrome (69444496).

The spelling of 61340180 in words is "sixty-one million, three hundred forty thousand, one hundred eighty".