199651050 has 108 divisors (see below), whose sum is σ = 566573670. Its totient is φ = 50397120.

The previous prime is 199651037. The next prime is 199651087. The reversal of 199651050 is 50156991.

199651050 is a `hidden beast` number, since 1 + 9 + 96 + 510 + 50 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 191850201 + 7800849 = 13851^2 + 2793^2 .

It is a super-2 number, since 2×199651050² = 79721083532205000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 199650996 and 199651014.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 161836 + ... + 163064.

Almost surely, 2^199651050 is an apocalyptic number.

199651050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 199651050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283286835).

199651050 is an abundant number, since it is smaller than the sum of its proper divisors (366922620).

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

199651050 is a wasteful number, since it uses less digits than its factorization.

199651050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285 (or 1258 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 36.

The square root of 199651050 is about 14129.7929921142. The cubic root of 199651050 is about 584.4632376506.

It can be divided in two parts, 199 and 651050, that added together give a square (651249 = 807²).

The spelling of 199651050 in words is "one hundred ninety-nine million, six hundred fifty-one thousand, fifty".