61350015 has 8 divisors (see below), whose sum is σ = 98160048. Its totient is φ = 32720000.

The previous prime is 61349999. The next prime is 61350041. The reversal of 61350015 is 51005316.

It is a happy number.

61350015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 61350015 - 2⁴ = 61349999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61349973 and 61350000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2044986 + ... + 2045015.

It is an arithmetic number, because the mean of its divisors is an integer number (12270006).

Almost surely, 2^61350015 is an apocalyptic number.

61350015 is a deficient number, since it is larger than the sum of its proper divisors (36810033).

61350015 is a wasteful number, since it uses less digits than its factorization.

61350015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4090009.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 61350015 is about 7832.6250388998. The cubic root of 61350015 is about 394.4011970629.

The spelling of 61350015 in words is "sixty-one million, three hundred fifty thousand, fifteen".