61212194 has 4 divisors (see below), whose sum is σ = 91818294. Its totient is φ = 30606096.

The previous prime is 61212187. The next prime is 61212211. The reversal of 61212194 is 49121216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 45900625 + 15311569 = 6775^2 + 3913^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15303047 + ... + 15303050.

Almost surely, 2^61212194 is an apocalyptic number.

61212194 is a deficient number, since it is larger than the sum of its proper divisors (30606100).

61212194 is a wasteful number, since it uses less digits than its factorization.

61212194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30606099.

The product of its digits is 864, while the sum is 26.

The square root of 61212194 is about 7823.8222116814. The cubic root of 61212194 is about 394.1056387441.

The spelling of 61212194 in words is "sixty-one million, two hundred twelve thousand, one hundred ninety-four".