195249873 has 32 divisors (see below), whose sum is σ = 330760192. Its totient is φ = 99662400.

The previous prime is 195249853. The next prime is 195249883. The reversal of 195249873 is 378942591.

195249873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 195249873 - 2¹⁰ = 195248849 is a prime.

It is a super-2 number, since 2×195249873² = 76245025813032258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (195249853) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3073 + ... + 19998.

It is an arithmetic number, because the mean of its divisors is an integer number (10336256).

Almost surely, 2^195249873 is an apocalyptic number.

195249873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

195249873 is a deficient number, since it is larger than the sum of its proper divisors (135510319).

195249873 is a wasteful number, since it uses less digits than its factorization.

195249873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23125.

The product of its digits is 544320, while the sum is 48.

The square root of 195249873 is about 13973.1840680641. The cubic root of 195249873 is about 580.1365839650.

The spelling of 195249873 in words is "one hundred ninety-five million, two hundred forty-nine thousand, eight hundred seventy-three".