61112340 has 48 divisors (see below), whose sum is σ = 190128960. Its totient is φ = 16296480.

The previous prime is 61112333. The next prime is 61112351. The reversal of 61112340 is 4321116.

It is a happy number.

61112340 is a `hidden beast` number, since 611 + 12 + 3 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 56046 + ... + 57125.

It is an arithmetic number, because the mean of its divisors is an integer number (3961020).

Almost surely, 2^61112340 is an apocalyptic number.

61112340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61112340 is an abundant number, since it is smaller than the sum of its proper divisors (129016620).

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

61112340 is a wasteful number, since it uses less digits than its factorization.

61112340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113189 (or 113181 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 61112340 is about 7817.4381993080. The cubic root of 61112340 is about 393.8912237186.

Adding to 61112340 its reverse (4321116), we get a palindrome (65433456).

The spelling of 61112340 in words is "sixty-one million, one hundred twelve thousand, three hundred forty".