61420445 has 16 divisors (see below), whose sum is σ = 78349440. Its totient is φ = 46090944.

The previous prime is 61420433. The next prime is 61420451. The reversal of 61420445 is 54402416.

It is a cyclic number.

It is not a de Polignac number, because 61420445 - 2²⁰ = 60371869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6647 + ... + 12923.

It is an arithmetic number, because the mean of its divisors is an integer number (4896840).

Almost surely, 2^61420445 is an apocalyptic number.

It is an amenable number.

61420445 is a deficient number, since it is larger than the sum of its proper divisors (16928995).

61420445 is a wasteful number, since it uses less digits than its factorization.

61420445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6404.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 61420445 is about 7837.1196877424. The cubic root of 61420445 is about 394.5520639289.

The spelling of 61420445 in words is "sixty-one million, four hundred twenty thousand, four hundred forty-five".