61198254 has 40 divisors (see below), whose sum is σ = 147682920. Its totient is φ = 18829584.

The previous prime is 61198253. The next prime is 61198273. The reversal of 61198254 is 45289116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61198253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12424 + ... + 16635.

It is an arithmetic number, because the mean of its divisors is an integer number (3692073).

Almost surely, 2^61198254 is an apocalyptic number.

61198254 is an abundant number, since it is smaller than the sum of its proper divisors (86484666).

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

61198254 is a wasteful number, since it uses less digits than its factorization.

61198254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29086 (or 29077 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 61198254 is about 7822.9312920414. The cubic root of 61198254 is about 394.0757195982.

The spelling of 61198254 in words is "sixty-one million, one hundred ninety-eight thousand, two hundred fifty-four".