61380297 has 12 divisors (see below), whose sum is σ = 96720624. Its totient is φ = 37200120.

The previous prime is 61380289. The next prime is 61380301. The reversal of 61380297 is 79208316.

61380297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61380297 - 2³ = 61380289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61380287) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 309903 + ... + 310100.

It is an arithmetic number, because the mean of its divisors is an integer number (8060052).

Almost surely, 2^61380297 is an apocalyptic number.

It is an amenable number.

61380297 is a deficient number, since it is larger than the sum of its proper divisors (35340327).

61380297 is a wasteful number, since it uses less digits than its factorization.

61380297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620020 (or 620017 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 61380297 is about 7834.5578688271. The cubic root of 61380297 is about 394.4660777455.

The spelling of 61380297 in words is "sixty-one million, three hundred eighty thousand, two hundred ninety-seven".