61814013 has 8 divisors (see below), whose sum is σ = 84646368. Its totient is φ = 40095504.

The previous prime is 61814003. The next prime is 61814017. The reversal of 61814013 is 31041816.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61814013 - 2⁵ = 61813981 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61814017) 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, 278331 + ... + 278552.

It is an arithmetic number, because the mean of its divisors is an integer number (10580796).

Almost surely, 2^61814013 is an apocalyptic number.

It is an amenable number.

61814013 is a deficient number, since it is larger than the sum of its proper divisors (22832355).

61814013 is a wasteful number, since it uses less digits than its factorization.

61814013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556923.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 61814013 is about 7862.1888173714. The cubic root of 61814013 is about 395.3930030751.

Adding to 61814013 its reverse (31041816), we get a palindrome (92855829).

The spelling of 61814013 in words is "sixty-one million, eight hundred fourteen thousand, thirteen".