61098518 has 16 divisors (see below), whose sum is σ = 100052736. Its totient is φ = 27812160.

The previous prime is 61098517. The next prime is 61098523. The reversal of 61098518 is 81589016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61098517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14198 + ... + 17993.

It is an arithmetic number, because the mean of its divisors is an integer number (6253296).

Almost surely, 2^61098518 is an apocalyptic number.

61098518 is a deficient number, since it is larger than the sum of its proper divisors (38954218).

61098518 is a wasteful number, since it uses less digits than its factorization.

61098518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32279.

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 61098518 is about 7816.5541001134. The cubic root of 61098518 is about 393.8615255430.

It can be divided in two parts, 61098 and 518, that added together give a palindrome (61616).

The spelling of 61098518 in words is "sixty-one million, ninety-eight thousand, five hundred eighteen".