61012197 has 28 divisors (see below), whose sum is σ = 92336640. Its totient is φ = 40293288.

The previous prime is 61012187. The next prime is 61012199. The reversal of 61012197 is 79121016.

It is not a de Polignac number, because 61012197 - 2⁷ = 61012069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 61012197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61012199) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 92254 + ... + 92912.

Almost surely, 2^61012197 is an apocalyptic number.

It is an amenable number.

61012197 is a deficient number, since it is larger than the sum of its proper divisors (31324443).

61012197 is an equidigital number, since it uses as much as digits as its factorization.

61012197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804 (or 789 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 61012197 is about 7811.0304697908. The cubic root of 61012197 is about 393.6759534230.

The spelling of 61012197 in words is "sixty-one million, twelve thousand, one hundred ninety-seven".