199024545 has 16 divisors (see below), whose sum is σ = 318614400. Its totient is φ = 106088064.

The previous prime is 199024513. The next prime is 199024547. The reversal of 199024545 is 545420991.

It is not a de Polignac number, because 199024545 - 2⁵ = 199024513 is a prime.

It is a super-2 number, since 2×199024545² = 79221539024914050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (199024547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49812 + ... + 53658.

It is an arithmetic number, because the mean of its divisors is an integer number (19913400).

Almost surely, 2^199024545 is an apocalyptic number.

199024545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

199024545 is a deficient number, since it is larger than the sum of its proper divisors (119589855).

199024545 is a wasteful number, since it uses less digits than its factorization.

199024545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7304.

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 199024545 is about 14107.6059273004. The cubic root of 199024545 is about 583.8512485113.

The spelling of 199024545 in words is "one hundred ninety-nine million, twenty-four thousand, five hundred forty-five".