61571198 has 16 divisors (see below), whose sum is σ = 99602160. Its totient is φ = 28377216.

The previous prime is 61571189. The next prime is 61571233. The reversal of 61571198 is 89117516.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25061 + ... + 27407.

It is an arithmetic number, because the mean of its divisors is an integer number (6225135).

Almost surely, 2^61571198 is an apocalyptic number.

61571198 is a deficient number, since it is larger than the sum of its proper divisors (38030962).

61571198 is a wasteful number, since it uses less digits than its factorization.

61571198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3371.

The product of its digits is 15120, while the sum is 38.

The square root of 61571198 is about 7846.7316763096. The cubic root of 61571198 is about 394.8746020793.

The spelling of 61571198 in words is "sixty-one million, five hundred seventy-one thousand, one hundred ninety-eight".