61426005 has 32 divisors (see below), whose sum is σ = 100631808. Its totient is φ = 31987200.

The previous prime is 61426003. The next prime is 61426037. The reversal of 61426005 is 50062416.

61426005 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 61426005 - 2¹ = 61426003 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61426003) 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, 145695 + ... + 146115.

It is an arithmetic number, because the mean of its divisors is an integer number (3144744).

Almost surely, 2^61426005 is an apocalyptic number.

It is an amenable number.

61426005 is a deficient number, since it is larger than the sum of its proper divisors (39205803).

61426005 is a wasteful number, since it uses less digits than its factorization.

61426005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 61426005 is about 7837.4744018721. The cubic root of 61426005 is about 394.5639689945.

The spelling of 61426005 in words is "sixty-one million, four hundred twenty-six thousand, five".