61806195 has 36 divisors (see below), whose sum is σ = 117765648. Its totient is φ = 29964000.

The previous prime is 61806181. The next prime is 61806223. The reversal of 61806195 is 59160816.

It is not a de Polignac number, because 61806195 - 2⁹ = 61805683 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 231 + ... + 11120.

It is an arithmetic number, because the mean of its divisors is an integer number (3271268).

Almost surely, 2^61806195 is an apocalyptic number.

61806195 is a deficient number, since it is larger than the sum of its proper divisors (55959453).

61806195 is a wasteful number, since it uses less digits than its factorization.

61806195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11384 (or 11370 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 61806195 is about 7861.6916118606. The cubic root of 61806195 is about 395.3763331072.

It can be divided in two parts, 61806 and 195, that added together give a square (62001 = 249²).

The spelling of 61806195 in words is "sixty-one million, eight hundred six thousand, one hundred ninety-five".