61231194 has 16 divisors (see below), whose sum is σ = 136069440. Its totient is φ = 20410380.

The previous prime is 61231193. The next prime is 61231201. The reversal of 61231194 is 49113216.

61231194 is a `hidden beast` number, since 612 + 31 + 19 + 4 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (61231193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 566902 + ... + 567009.

It is an arithmetic number, because the mean of its divisors is an integer number (8504340).

Almost surely, 2^61231194 is an apocalyptic number.

61231194 is an abundant number, since it is smaller than the sum of its proper divisors (74838246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61231194 is a wasteful number, since it uses less digits than its factorization.

61231194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133922 (or 1133916 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 61231194 is about 7825.0363577430. The cubic root of 61231194 is about 394.1464107539.

It can be divided in two parts, 61231 and 194, that added together give a triangular number (61425 = T₃₅₀).

The spelling of 61231194 in words is "sixty-one million, two hundred thirty-one thousand, one hundred ninety-four".