61114140 has 72 divisors (see below), whose sum is σ = 187959408. Its totient is φ = 16070400.

The previous prime is 61114139. The next prime is 61114169. The reversal of 61114140 is 4141116.

61114140 is a `hidden beast` number, since 611 + 14 + 1 + 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 23 ways as a sum of consecutive naturals, for example, 10815 + ... + 15465.

Almost surely, 2^61114140 is an apocalyptic number.

61114140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61114140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93979704).

61114140 is an abundant number, since it is smaller than the sum of its proper divisors (126845268).

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

61114140 is a wasteful number, since it uses less digits than its factorization.

61114140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4739 (or 4734 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 61114140 is about 7817.5533256896. The cubic root of 61114140 is about 393.8950908985.

Adding to 61114140 its reverse (4141116), we get a palindrome (65255256).

The spelling of 61114140 in words is "sixty-one million, one hundred fourteen thousand, one hundred forty".