61280315 has 8 divisors (see below), whose sum is σ = 73817568. Its totient is φ = 48836800.

The previous prime is 61280309. The next prime is 61280321. The reversal of 61280315 is 51308216.

61280315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61280309) and next prime (61280321).

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

It is not a de Polignac number, because 61280315 - 2⁴ = 61280299 is a prime.

It is a Duffinian 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, 21986 + ... + 24615.

It is an arithmetic number, because the mean of its divisors is an integer number (9227196).

Almost surely, 2^61280315 is an apocalyptic number.

61280315 is a deficient number, since it is larger than the sum of its proper divisors (12537253).

61280315 is a wasteful number, since it uses less digits than its factorization.

61280315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46869.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 61280315 is about 7828.1744359716. The cubic root of 61280315 is about 394.2517801996.

The spelling of 61280315 in words is "sixty-one million, two hundred eighty thousand, three hundred fifteen".