61475421 has 16 divisors (see below), whose sum is σ = 94998528. Its totient is φ = 34633200.

The previous prime is 61475411. The next prime is 61475429. The reversal of 61475421 is 12457416.

61475421 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 61475421 - 2¹³ = 61467229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61475429) 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 15 ways as a sum of consecutive naturals, for example, 19125 + ... + 22106.

It is an arithmetic number, because the mean of its divisors is an integer number (5937408).

Almost surely, 2^61475421 is an apocalyptic number.

It is an amenable number.

61475421 is a deficient number, since it is larger than the sum of its proper divisors (33523107).

61475421 is a wasteful number, since it uses less digits than its factorization.

61475421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41312.

The product of its digits is 6720, while the sum is 30.

The square root of 61475421 is about 7840.6263142685. The cubic root of 61475421 is about 394.6697469241.

The spelling of 61475421 in words is "sixty-one million, four hundred seventy-five thousand, four hundred twenty-one".