61198100 has 36 divisors (see below), whose sum is σ = 133158144. Its totient is φ = 24413280.

The previous prime is 61198099. The next prime is 61198127. The reversal of 61198100 is 189116.

It is a super-2 number, since 2×61198100² = 7490414887220000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61198100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55757 + ... + 56843.

Almost surely, 2^61198100 is an apocalyptic number.

It is an amenable number.

61198100 is an abundant number, since it is smaller than the sum of its proper divisors (71960044).

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

61198100 is a wasteful number, since it uses less digits than its factorization.

61198100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664 (or 1657 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 26.

The square root of 61198100 is about 7822.9214491774. The cubic root of 61198100 is about 394.0753890456.

The spelling of 61198100 in words is "sixty-one million, one hundred ninety-eight thousand, one hundred".