61360405 has 16 divisors (see below), whose sum is σ = 77702400. Its totient is φ = 46388160.

The previous prime is 61360381. The next prime is 61360421. The reversal of 61360405 is 50406316.

It is not a de Polignac number, because 61360405 - 2¹¹ = 61358357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61360405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66900 + ... + 67810.

It is an arithmetic number, because the mean of its divisors is an integer number (4856400).

Almost surely, 2^61360405 is an apocalyptic number.

It is an amenable number.

61360405 is a deficient number, since it is larger than the sum of its proper divisors (16341995).

61360405 is a wasteful number, since it uses less digits than its factorization.

61360405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 61360405 is about 7833.2882622817. The cubic root of 61360405 is about 394.4234605572.

The spelling of 61360405 in words is "sixty-one million, three hundred sixty thousand, four hundred five".