61356465 has 12 divisors (see below), whose sum is σ = 106351284. Its totient is φ = 32723424.

The previous prime is 61356419. The next prime is 61356467. The reversal of 61356465 is 56465316.

61356465 is a `hidden beast` number, since 6 + 1 + 3 + 5 + 646 + 5 = 666.

61356465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 22268961 + 39087504 = 4719^2 + 6252^2 .

It is not a de Polignac number, because 61356465 - 2²¹ = 59259313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61356467) 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, 681694 + ... + 681783.

It is an arithmetic number, because the mean of its divisors is an integer number (8862607).

Almost surely, 2^61356465 is an apocalyptic number.

It is an amenable number.

61356465 is a deficient number, since it is larger than the sum of its proper divisors (44994819).

61356465 is a wasteful number, since it uses less digits than its factorization.

61356465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363488 (or 1363485 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 61356465 is about 7833.0367674357. The cubic root of 61356465 is about 394.4150182961.

The spelling of 61356465 in words is "sixty-one million, three hundred fifty-six thousand, four hundred sixty-five".