61420205 has 24 divisors (see below), whose sum is σ = 92593536. Its totient is φ = 38285280.

The previous prime is 61420199. The next prime is 61420213. The reversal of 61420205 is 50202416.

It is a happy number.

It is not a de Polignac number, because 61420205 - 2⁸ = 61419949 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3017 + ... + 11486.

It is an arithmetic number, because the mean of its divisors is an integer number (3858064).

Almost surely, 2^61420205 is an apocalyptic number.

It is an amenable number.

61420205 is a deficient number, since it is larger than the sum of its proper divisors (31173331).

61420205 is a wasteful number, since it uses less digits than its factorization.

61420205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14537 (or 14526 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 61420205 is about 7837.1043759797. The cubic root of 61420205 is about 394.5515500250.

The spelling of 61420205 in words is "sixty-one million, four hundred twenty thousand, two hundred five".