61332198 has 32 divisors (see below), whose sum is σ = 127334400. Its totient is φ = 19673280.

The previous prime is 61332169. The next prime is 61332217. The reversal of 61332198 is 89123316.

It is a super-2 number, since 2×61332198² = 7523277023022408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 36186 + ... + 37842.

It is an arithmetic number, because the mean of its divisors is an integer number (3979200).

Almost surely, 2^61332198 is an apocalyptic number.

61332198 is an abundant number, since it is smaller than the sum of its proper divisors (66002202).

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

61332198 is a wasteful number, since it uses less digits than its factorization.

61332198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892.

The product of its digits is 7776, while the sum is 33.

The square root of 61332198 is about 7831.4875981515. The cubic root of 61332198 is about 394.3630132826.

The spelling of 61332198 in words is "sixty-one million, three hundred thirty-two thousand, one hundred ninety-eight".