61519801 has 8 divisors (see below), whose sum is σ = 71272064. Its totient is φ = 52008480.

The previous prime is 61519771. The next prime is 61519811. The reversal of 61519801 is 10891516.

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

It is a cyclic number.

It is not a de Polignac number, because 61519801 - 2¹⁹ = 60995513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61519811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59685 + ... + 60706.

It is an arithmetic number, because the mean of its divisors is an integer number (8909008).

Almost surely, 2^61519801 is an apocalyptic number.

It is an amenable number.

61519801 is a deficient number, since it is larger than the sum of its proper divisors (9752263).

61519801 is a wasteful number, since it uses less digits than its factorization.

61519801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120471.

The product of its (nonzero) digits is 2160, while the sum is 31.

The square root of 61519801 is about 7843.4559347267. The cubic root of 61519801 is about 394.7646966883.

The spelling of 61519801 in words is "sixty-one million, five hundred nineteen thousand, eight hundred one".