61409595 has 32 divisors (see below), whose sum is σ = 108408384. Its totient is φ = 29491200.

The previous prime is 61409581. The next prime is 61409597. The reversal of 61409595 is 59590416.

61409595 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 61409595 - 2¹⁸ = 61147451 is a prime.

It is a super-2 number, since 2×61409595² = 7542276716128050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (61409597) 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 31 ways as a sum of consecutive naturals, for example, 4155 + ... + 11835.

It is an arithmetic number, because the mean of its divisors is an integer number (3387762).

Almost surely, 2^61409595 is an apocalyptic number.

61409595 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

61409595 is a deficient number, since it is larger than the sum of its proper divisors (46998789).

61409595 is a wasteful number, since it uses less digits than its factorization.

61409595 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7743.

The product of its (nonzero) digits is 48600, while the sum is 39.

The square root of 61409595 is about 7836.4274385717. The cubic root of 61409595 is about 394.5288298522.

The spelling of 61409595 in words is "sixty-one million, four hundred nine thousand, five hundred ninety-five".