614121540 has 24 divisors (see below), whose sum is σ = 1719540480. Its totient is φ = 163765728.

The previous prime is 614121539. The next prime is 614121593. The reversal of 614121540 is 45121416.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 614121540.

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, 5117620 + ... + 5117739.

It is an arithmetic number, because the mean of its divisors is an integer number (71647520).

Almost surely, 2^614121540 is an apocalyptic number.

614121540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

614121540 is an abundant number, since it is smaller than the sum of its proper divisors (1105418940).

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

614121540 is a wasteful number, since it uses less digits than its factorization.

614121540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10235371 (or 10235369 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 614121540 is about 24781.4757429819. The cubic root of 614121540 is about 849.9984036879.

Adding to 614121540 its reverse (45121416), we get a palindrome (659242956).

The spelling of 614121540 in words is "six hundred fourteen million, one hundred twenty-one thousand, five hundred forty".